My V21 also doesn't stay hove to for more than a few moments. I've tried several approaches into it and some people (I don't remember if it was on an earlier thread here) seemed to feel that it was my smallish jib - It came from a precision 19 when it was discovered that the original jib that came with my boat had a hole eaten into it the size of a coffee machine - and is barely 100%. The opinion might have come from my rigger, but then he also insisted that I'd need a spacer at the tack of my main when switching from bolt rope to sail slugs:Liar: .