I'm getting parts rounded up to install A/C in my LT1-swapped car with the LT1 R-134A compressor, LT1 dual fans, and thirdgen stock condenser. I want to go with a variable orifice tube but don't know if I want the one that says its for normal climate or the one that says its for severe climate. Autozone and O'Reilly's appear to have both severe and normal orifice tubes but different brands. The severe flavor seems to run about $15 more. I'm just wondering which one would work the best for my setup.