Rings?!

[zraffz]

I'm almost done collecting parts for a nitrous motor I'm building (around 250 shot). I originally purchased HNS rings (equivalent to hell fire) but I would like a ring that is less abusive on the cylinder walls. Does such a ring exist that will hold up to that amount of nitrous without ruining my motor?

[zraffz]

I spoke to Keith at Total Seal and he had recommended the M3690 45 rings.
http://www.summitracing.com/parts/TSR-M3690-45/

I have no experience with gapless rings but it threw up a red flag. He basically said they aren't as strong but they will work and won't destroy my cylinder walls nearly as much as a gas nitrided ring would.


Also the TNT series don't seem to be abusive:
http://www.summitracing.com/parts/TSR-MT3690-45/


HELP!