Hey brandT

I also use a Carvewright and Moi is perfect for it...the stl import great if you have stl importer with CW. Just make sure everything is joined in moi or when you import into CW's Designer software sometimes you end up with very small pointy spikes...they wont carve..way too small..but look annoying. Other program I use a lot is zbrush after moi...but you can do a lot of the same things with sculptris and it's free.

Good Luck