Okay guys, Expense: Not an issue, the smooth cast 300 and 320 cost about $150-$170 for a gallon kit (gallon A-gallon B = 2gal.) . FlexFoam cost $150-$170 for a gallo kit (gallon A - 2 gallons B = 3gal.) so you actually get more material. Plus flexfoam expands up to x2, where resin actually shrink .05% on average. 6oz total is all I used to make the cod piece. Ar far as detail, I'd say you could cast in Flexfoam 5 and get all good a cast as any resin, or even latex... Plus FF5 is very light, and semi stretchy, so you might be able to cast undersuit componnents with ease. I'll post the pouches sortly and you will be able to see the level of detail I'm talking about.