I don't really know what is in any of this stuff. All I know is what is contained in product descriptions. For example, here is what AutoGeek says about 601: "Duragloss PBA is completely transparent and undetectable underneath the sealant. It removes old wax, which can cause the final coat of protection to appear cloudy, and thereby enhances the final gloss". Because it says it removes old wax, I have to assume it is either a paint cleaner or maybe it is a true polish and contains abrasive agents of some kind. If it removes wax, no matter what chemical or abrasive process it uses to do so, I have to believe it would also be detrimental to a coating. But again, that is an assumption.
As far as 111 is concerned, I again refer to AutoGeek's description: "Duragloss Clear Coat Polish (111) is what we would call a paint sealant. It actually has no abrasives in it and therefore does not fit what most modern car care specialists define as polishes".
So, if we believe these product descriptions, it would appear the bonding agent would indeed impact adversely on the the coating (or anything else it is put on) and is intended to be used as sort of a cleaner in preparation for an application of sealant. Unlike most paint cleansers, it also assists in the bonding process, at least it does for Duragloss sealants and I would assume it should also assist any other poly-seal product.
Conversely, (and here is yet another assumption from the description) it appears 111 by itself has nothing in it to adversely affect the coating. Having said that and assuming even if it is true, why would one want to put 111, or anything else for that matter, on top of a coating, which if I have read about this correctly, was developed to be a long lasting, stand alone LSP? As I said before, putting something on top of a coating seems to defeat the purpose.