The problem with aluminum rods for me is that they have a short life span. I can't afford to buy a new set of $1300 rods after 300 passes. At a higher power level of course better parts are required. It's up to each individual as to how much they gamble on a part. That's why I posted here. My experience with the parts I mentioned have been trouble free for the number of passes at the stroke and RPM run in my motor.