What's going in?
I know I had a hell of a time deciding between 4032 and 2618, coatings, pins, rings, stroke and rod design.

The best advice I have for anyone is to not worry about the noise from slap, that shouldn't factor in to your decision but from my experience, if you can safely squeeze a couple extra cubes out of the motor by bore or stroke, it makes sense, even if the parts are a little more. I don't know enough about these motors to give spec advice. Looking forward to hearing about yours and everyone else's builds.