I am a gas piston guy but I can see the disadvantages of the gas setup. Parts interchanagbility, weight, price..etc. I agree about it being a better system for a few. But for general purposes a normal shooter wouldn't benefit from it. The only point I'd argue with you is the LWRC or Hk makes the best piston guns. Hk has no carrrier tilt problem and I think LWRC has it fixed too.
" The strongest reason for the people to retain the right to
keep and bear arms is, as a last resort, to protect
themselves against tyranny in Government...." - Thomas Jefferson