My thoughts. The Bulldog 400 and the M405 are very long range xbows and have unbelievable accuracy. My 380 & 405 will get 1 1/2" 3-shot 100 yd groups using benchrest techniques. My findings: 18" Zombies best, best vanes likely SK200 or 300s. 26g g AL inserts(26g), helical on Blazers or SK200s and offset if use SK300, FOC broadheads best , IMO (170g). Vixenmaster (smokepolehall) makes great strings, Southshore archery (Jerry) makes great arrows. I have and like the HHA Optimizer with a good rifle scope. Best for accurate, long range hunting. I'd get a lighted reticle scope or a great scope with a reticle that shows up in low light. Dr Stirrup kit is great. I think the Excal Air Brakes help reduce bow stress and hand shock. I have a wooden stock but it normally isn't used. If you use 100 or 125g fixed or expandible broadheads , get 90 or 110g inserts. TT trigger is a big step up. Get a spare set of blemished limbs($80) from Excal. Have 2-3 strings that you've used and stretched out. Read all of the info on the Boo Stringss site. Hope this helps.
Thoughts. Can't use C-2 cocker if use wooden stock. Bulldog 400 is likely a better Xbow in a # of ways. What I'd get now . However my Matrix xbows may well be the xbows for the duration. I might go to using SK300 vanes in offset, Lumenocks, 55g brass inserts and stay with the FOCs(170g) and have an arrow weight of 440-445g. TT trigger is a major step up. Consider a Smokepolehall Force 10 string/Angel Majesty. Consider Southshore Archery (Jerry) for your arrows. I've always done my own, but his are spine indexed, extremely wt matched, beautifully made for not a lot above the components. I'm a really good arrow maker but don't come close to Jerry (or Big John , or Dorge - Firenock). Thanks Rossman. In all honesty, I didn't think there is anything I know that you truly know better. Maybe dentistry, flying F111s or flight instruction, but maybe not. I try to read every post of yours, just to learn.
M405 is lifetime guaranteed , and shoots about 390'/sec with my 398g arrows w/o all my sound deadening stuff including a heavy string/silencers. The sound deadening stuff reduces the speed to 383'/sec. The Bulldog 400, though speed rated only 5'/sec slower, has been reported as much more than 5'/sec slower. I'm being sent one to test and compare against the M380 & M405. We'll see. I use classic bench rest procedures , including wind flags, Hart Adj rest/Protector #13, but no free recoil :-). I think the Bulldog 400, even though it is a little slower, will likely be a more user friendly Xbow. If a person is wanting a very fast, very accurate, light weight, life time warranted Xbow , that M405 appears to be a steal.