Bob and I spoke for several hours (I think) and while we agree that we don't agree and a lot, we had a heart to heart conversation. At the end of day Bob raised some valid points about my perception online, and it turned into a positive conversation in the end.
In the end I never intentionally attacked Bob on this post, but our previous history lead to an obvious assumption. Bob has a reputation for amazingly good work that speaks for itself (if anybody is trying to make a leap). It actually feels good to have a positive out come from a disagreement, and to that end I have created my own perception. (Which could be better).As far as re-applying wax, you don't really need to worry to much about wax build up. If you are reapplying the same brand product there should be no issues with bonding or anchoring.
The advice given previously is stop on. Wash the car thoroughly, dry it, then inspect the finish by feel. If it 'feels' gritty, then claying is probably the best option. If the paint is smooth, then you will be fine with putting on another layer.
I am not a fan of using clay to remove previous lsp's. There is a risk of marring with clay. If your goal is simply remove the previous layer of wax a high alkaline soap wash or a wipe down with isopropyl alcohol would probably serve as better options
