Tommy,

Considering that I really like the Ballistic Pattern planes, I would go with the .91 with pipe. You will have to make certain you have zero slop control surfaces with no hinge gap or your plane will be ballistic in more than speed. Flutter is a very real problem with Ballistic Pattern Ships and all it takes is careful rigging and throttle management and it becomes a non-issue. Show us a pic of this restored beauty.... I'm sure everyone would like to see it.

Good luck with your resto project...

Dan

Carolina Custom Aircraft