The WG Sealant has NO cleaners. I believe that sealants with absolutely no cleaners work best with their partners in crime (ie: SG with AIO, Zaino etc...). The surface that the WG Cleaner leaves is extra slick and feels as though it is made for the Sealant. I would worry about the fillers in the VM and the ability of WG to properly bond.
Most of the comments about the pre-wax cleaner seem initially negative but are ultimately positive. When you use a mf or terry applicator to apply the cleaner, you can "feel" the cleaner working. Thus, it is "difficult" to apply (with the aforementioned items) and couldn't be easier to remove. Give it a try with the VM, but I would recommend a paint cleaner like AIO or SEC before the WG Sealant.
Either way, have fun with it--you will find yourself throwing additional layers on once in a while just because it is fun and it takes 5 minutes.