Welcome to the Strelets Forum. Please feel free to discuss any aspect of 1/72 scale plastic figures, not simply Strelets. If you have any questions about our products then we will answer them here.
Re: Making cavalry riders sit better on their mounts.
I always paint post-mounting as I never intend to take the riders off. Plus, working with the plastic to bend/shape, or fiddle with pinning is easier before painting. And besides, you don't want to damage the paint job...