Jeff,
I gave you a short answer, but here is little more of the story. I bought a Praiere Swift from Tim at Cloverdale in 2004 after a back injury 'cause I wanted a lighter weight bow(54#s @ 28"). It is my favorite recurve. I called Tim and asked the same question you have and that's the answer he gave me. It shoots well at that brace height.
There is a point at the rear of the riser the contacts the web of your hand when you grip the bow. Measure from the string to that point.
Killed my first Trad. buck wiith it at Land Between the Lakes!