It's worth to get the stainless disk if you ever plan on flying any of the motors that require it. My logic is buy once cry once and then you don't have to worry about it. Only downside is that it's quite a bit heavier if that matters to youCool, thanks for the info. I'd love to fly 5 and 6 grain stuff in my CTI hardware, but the 4 grain stuff should still be great as well.
Looks like I'll need to purchase a forward seal disk, for those who have used them, is it worth spending the extra $20 to get the stainless steel one? Is it easier to clean? The only other Aerotech stuff I've previously flown was 38 MM and besides some anodizing fading, the aluminum seal disk in that case seems to be doing fine...