Cast vs. Forged Crank?

I vote for forged due the HP and the % of time at the track.

Not sure it makes enough difference to worry over at all..... external balance puts a tad of extra stress on the crank ends. But if you had new external parts already, then at your HP level, I'd go external and not think twice about it.

Buying the assembly already balanced from SCAT makes a LOT of sense to me.