Like GeoffV, I've used them on all previous boats, racing or otherwise and especially with our Contessa 32 - no electronics, just compass, trailed log and hawk so very useful for quick confirmation of back-of-the-neck wind shifts (especially poled-out on a run). I put them on Figaro but don't use them as much as I should. Returning to sailing after 20-odd years, I was really surprised at how few boats nowadays have them. They're so useful and easy; as G says, what's not to like?