I owned a take down longbow that was constructed with the bow bolt and I would tell you that it is important to make sure your bowyer really knows how to work with it.
I would further state that this is especially important if you are having a longbow with a small riser built for you. In such cases it should be required that a fair amount of phenolic is used in the riser so that it has sufficient strength to withstand the stresses of shooting.
In my case the bowyer used only wood in the riser and after a few months, the bow blew up on me at full draw. The riser just wasn't strong enough. The bolt stayed connected... But the wood into which it was set just didn't have enough strength to stand up to the stress.
It was an awful experience, I can tell you that...fractured a finger and the string whipped around and cut me pretty good too.
I'm not trying to discourage you...lots of guys will likely chime in and tell you how great theirs are holding up and I'm certain that's true...just be sure your bowyer has a track record of successfully building bows with it. Good Luck