" stirring the pot..." I think you need a bigger spoon!

I think I understand your desire to return to aluminums... I have been thinking of doing the same thing but for a different reason. The fatter shaft makes it easier to tune my rest. when ya have two prongs on a thin shaft I found it very difficult to obtain vane clearance.

When In shot 2216' s I had a plunger rest and had NO vane contact and could hit quarters all day long at 20 yards. I use a release. The Beman ICS camo 400' s were to thin to use the plunger so I bought a NAP quicktune. I can' t hit those quarters now.
Maybe I just need to hit the range and do some more adjusting, huh.