You'll find a lot of flatbows have a 'kick' at the tips. Sorry if'n I'm preaching to the choir here, but that's called reflex. Reflex helps to speed up the bow, quite a bit, giving better arrow speed & therefore trajectory. Down side is that a reflexed bow will give a lot more handshock than a straight bow & is a lot less forgiving of a bad release. The best allround shape is a Deflex/reflex This curves backwards at the riser & then forwards moving further up the limbs. This gives he speed of a reflexed bow & yet is as forgiving as a straight limb. Most D/R flatbows brace to a 'D' profile. Sorry if this is now getting a little more confusing!
Don't get too hung up about the strung profile. The only thing is, if the strung profile still has a trace of reflex, it just puts you into Hunting Tackle as opposed to AFB at NFAS shoots. Not something I've found to be a major issue
As an allround shooter, Macbow's got the right of it. Bowtec bows are excellent quality & frankly £150 ish too cheap for what they are! You certainly won't regret buying one of those lads!