[gregsfc]

That's beyond my expertise, but it looks good to me!

I wouldn't have thought yours was even close to being too long, but you wouldn't want a long tail like Vic or Alan has unless you also had an extended nose. I think that's what the article is saying, and so, if I'm understanding right, it's best just to cut it off flat like Sendler has done rather than to continue the taper to a point.

I'm going to try and learn a little more and eventually come up with some sort of tapered box or tail myself. If I end up not building a box or tail, I'll be looking in to your cheaper/better box than the Dewalt box for mine for the FE Challenge next year