Carter Evolution Problems

[Watch_Man]

Bought a Carter Evolution from a shop. I got a chance to shoot it yesterday for the first time. The first thing I noticed was that even with the spring wound fully out to its minimum setting, it was difficult to get the bow to release without a good tug.

The bow I am using is a Bladerunner and according to my Easton Digital scales was set at 46/17

a shop kindly sent me out the weaker spring, even with the bow wound down to 40/14 and the spring on its stiffest setting, the bow fires as soon as the safety is released. So I put the original spring in and started winding the bow up. Again with the spring on the Evolution on its weakest setting I had to go to 56/20 before the release aid would function with any ease.

I thought perhaps I had misunderstood the instructions so wound the spring to the opposite end. I had to let the bow down, as even at 56/20 I couldn't get it to release using my full strength.

I spoke to a shop again and they suggested it may be something to do with the design of the Bladerunner. I have tried it on my Allegiance and it does actually seem to fire easier but I still have a bit of a struggle. However the allegiance has about the same holding weight as the Bladerunner - 20lbs

It feels as though there should be an intermediate spring, somewhere between the one fitted and the weaker one sent by a shop. I am going to ask someone else to shoot it tonight at the club and see how they get on.

I suppose at the end of this ramble, my question is this; does anyone else with a bladerunner use the Evolution? and if so did they have the same problems as me.

[Fox]

Who makes the bladerunner?

[Watch_Man]

Originally Posted by Fox

Who makes the bladerunner?

http://www.bladerunnerarchery.com/

Forrester Manufacturing Co

[Fox]

Hmmm, never seen that before. Could be the wall but couldnt say without drawing it but if it isnt working on the bowtech either who knows???

[Watch_Man]

Originally Posted by Fox

Hmmm, never seen that before. Could be the wall but couldnt say without drawing it but if it isnt working on the bowtech either who knows???

It seems to be slightly easier on the BowTech, so perhaps a shop are correct in thinking it may be something to do with the design of the Bladerunner, however there seems to be a gap between the maximum setting on the weak spring and the minimum setting of the supplied spring. This is apparent on both bows, although not so evident on the allegiance.

It seems a little like the HHA BT release. I had no problem with it, but others I know hated it. I can't see the bow being the problem..well not all of the problem. Holding weight is one thing..the weight on the release aid is another. A lot depends on how you complete the shot and how the release weight is applied.

I found the HHA shot best set on the hardest setting with a steady introduction of pressure. A hard jerk or pull could have the think hang up and refuse to trigger. But the Carter may be a different design. I'm not sure how you shoot or how you consider back tension to be. I was at a big advantage as I shot a BT gold for a good 12 months before I tried the HHA. for me it works effortlessly.

Stick at it and experiment. That type of release is not a fix for all people.

[kato]

I read somewhere that there are 4 springs? 16-36#,20-38 and a couple of lighter ones so finding the right spring should be doable

I think there is a little more to it than that though...started to have similar problems [still do] but concluded that the Evolution [despite being a genuine pull through] is angle sensitive as well as bloody minded [I think constant angle and constant pressure is required otherwise the same problems you get when you stop/start pull your recurve will apply.

Checked this out on AT forum [just search 'Carter Evolution'] and many are having similar experiences

Good news I guess, is that by the time we all get this thing working consistently our form will [have to] be examplary

It's lovely when it's working well though, isn't it?

[Watch_Man]

I have a solution (a temporary one perhaps) I refitted the weak spring but put the weakest spring that came with my Chocolate addiction right in the middle of the Evolution spring. As the evolution spring has a larger diameter, the Addiction spring fitted in nicely.

I have just tried setting up again and this time I get a much more satisfactory result with the combination of the two weak springs. I can get it to a point where one turn means the difference between the release aid holding or releasing as soon as the safety comes off.

I just checked the spring that was shipped with it and it reminded me of the LEDA suspension unit on my car It is very thick wire when compared to the weaker spring.

[pyroarch57]

The 30# spring would suit you the best it`s 12-17lbs.

[geoffretired]

Watch Man, Have you weighed your bows and the release on the same scales?
What the books say and what happens in reality doesn't always match. What really matters is the weight of the bow at the point where you settle on aim.
If you settle with a pull into the wall, then weigh the bow in that situation. Watch the scales show the valley and the coming out onto the wall. Note what the scales say. Then repeat with the release. See what weight it takes to trigger it. You need at least 2lb more than bow reading. That will seem like a hair trigger too, if you are used to pulling hard. Mine is a Loesch, but it works the same way. My bow valley is 14lb. The release is set to trigger at 20lb and that is not too much of a pull at the end.