So I'm just now paying attention to grips since I started using the Pro Staff 90 with its leather (which I hadn't felt in ages). What's always intrigued me is that despite the fact I sweat a ton on my palms, my grips have lasted an incredibly long time (by judgement of most). For example, I got my Wilson N-Code with Micro-Dry grip and never changed it during the course of two summer seasons which included tournament play. It's still on there but now with two significant tears on both sides. I also used overgrips as my grip on training racquets that I changed 2-3 times a season. For me, honestly, I prefer the feel of sweated grips. Whenever I have fresh grips I have more slipping until I get several matches in and there's very visible sweat stain. What about the rest of you?