Cast v Forged Crank

I've had no issues with the Eagle cast 3.58 stroke cranks. I've also been using the SRP flattop pistons, which are nice & light. Probe are light as well and a bit less expensive. But double-check the configuration of the SRP's you mentioned. I've seen flat-tops listed as flattop/inverted dome. The 10.3-1 compression with 65 cc chambers sounds like it would be a flattop.