JohnK is right, we havent changed our website yet, as we are thinking a whole new one is needed. The Flatbows (longbows) have all changed, and so have the limbs for the target and black douglas bows so alot of work is due...
The Hex 5 for the black douglas is available with a hyperflex (synthetic) core, and a wood core. Hex5-H and Hex5-W respectivly.
The Hex4 is only availabe in wood core. The next thing you might want to look at is the prices on the bows for sale page to see if there are any that meet your need. We still have XP10, XP30 limbs in stock. We also have risers in stock so you might be able to get what you want within 3 working days...
http://www.borderbows.com/Stock/Black%20Douglas.pdf
Edit: We have increased levels of performance with the limbs. The XP10-XP30 and Hex4. The hex 4 stands pround at top levels, but we have introduced the Hex5, so that it is quiter, smoother, faster than the hex4. we have also introduced the sythetic core to the black douglas field bows as a improvement in temperature stability, and a gain in speed due to the lighter mass in the core.
So its down to budget and aspirations. If you aspire to top performance then the hex5-H, or if your looking at other spending elsewhere, the hex4 should not dissapoint, even John Harvard (independently tested the hex4 after purchasing them), said that the hex4 was the fastest recurve he had ever tested, but the surprising side was the stability. The test is said to have produced 197fps with an arrow of 5grains heavier than AMO. This was 4 years ago. Which is where our R&D has gone.
John Harvard is said to have the largest library of tested field bows in north america.
Hope this puts our line up of limbs into presective
Sid