Those are pretty sweet. I'm sure you've done your research on these enough to know that one of yours, custom fit to blank OD, seems to cost about as much as the hollow tubing setups most people are familiar with. I've been building on the hollow tubing lately, and I like how light and crisp they are. They slide onto reamed graphite arbors which don't dampen vibration. As billed, yours look like solid graphite fiber, but that sounds heavy. How heavy is one of your grips like that, compared to non-burl conventional cork? I love how they look. Nice innovation,

Brian