Hi Al, nice to hear you are getting some good wing days - I'm 76 kg's, my most used foil is the 1500, similar to a lot of our riders - we all tend to choose rather a smaller wing and then a slightly bigger foil, to keep the power in the board, with allowing for a slightly smaller wing for control. The 1250 is great, I used it a lot last year, especially as a windsurfer it's fun to have the extra speed, but you do need to use a fairly big wing to keep it powered, especially in any lighter winds. So if you plan to keep the 2000 Aero for lighter winds or switch that to a 2000 High Aspect (would highly recommend it), then I'd say go for the 1500. I was out yesterday with a 6.0 is basically 8-12knots max on one of our local lakes here in Munich, using the 1500, but have used it in up to 35knots in Cape Town. Huge range.