Thank you! I had not heard about cleaning them, but I have tried rotating in the past before I ultimately had to replace them all. As far as the modeling is concerned I am talking about a preset patch that I have programmed to switch to an acoustic guitar via the patch. So I am not flipping any switches, etc for that patch. Sometimes I will use some alternate tunings and that always works fine within that patch. It's just switching to the patch that the guitar's modeling isn't activated via the patch. Once I hit the bank button and select that patch again 2-3 times it corrects itself and activates the modeling.
There are several forum posts about condensation of the piezos being an issue. I know a few people were saying they had that issue with JTV 89s? I am wondering if the Variax Standard or the Shuriken are having the same issues of if they designed them differently?