Len,
I don't have my Allegiance here yet, and I know you have the Stealths in the shop........is the 6" a good match on that particular bow?
I know that it shares very similar geometry to the Liberty which I DO have a 6" Stealth on currently. For my tastes the bow is balanced very well.....it has the slightest forward tilt while static, but balance at the shot is perfect with the idler hardly moving in any plane.
I don't know about you, but I tend to worry about "Dynamic balance" (if that's a term?) a little moreso than static.

The recoil pattern is probably a little different on the Allegiance as well due to the symetrical ends, so I was wondering what you have tried and what is working for you........lengths and weights if you don't want to get into manufacturers.
Thanks,
gotta go warm up the snow shovel.