Response from mfg.
"
The layering is all up to the individual and look you or others may want. The rubber is .015” thick and each layer of the G10 is about .0085” thick. So, to get a balanced look you want to go with 2. The idea comes from listening to customers and asking for a grippier grip. The amount of G10 or rubber can be altered a bit meaning if someone wanted more G10, less rubber it could be done. Do we have thicker rubber? Not at this time. The minimums are large and lead-times are long. Other colors of rubber? Yes there are some however; again lead-times are long and large minimums.
We are the manufacturer and depend on people like Jantz and others to help us determine what the customer wants. This is a totally new product and will be tested over time by people like you."