Yeah, I spoke directly with the piston engineer from Mahle who collaborated with SP63 to create and refine the 4032s (multiple emails and a phone call), explained my goals, and he said I'd be totally fine with the 4032 alloy.I`ve got a 12gph nozzle and a 7gph nozzle. More than average, less than extreme. Plenty to support the goal.
I like the idea of a 2618 piston, and if this wasn`t my DD I`d be all over those but the 4032 will easily support where I`m headed without a whimper and the lifespan is, and I quote "significantly longer". Nothing whatsoever wrong with overbuilding an engine, this is just a case where I`ll be only 80% of the potential vs 50%, yet double the lifespan.