Hey! I am currently using a L3 (4 3/8) Wilson nBlade with Wilsons Truegrip and Wilson Pro Overgrip ontop. Im finding the setup just a little bit too small. A L4 grip would be too big but I was wondering if a leathergrip instead of the truegrip would bring up the size somewhat? Conclusion are Wilson Leather grips, or any other brand, thicker then the Truegrip? Cheers!