Man, I hate putting on the "moderator hat". Everyone calm down, or we'll have to slap a lock on this thread (something, you might have noticed, that doesn't really happen very often at Autopia).
Back to the orignal topic . . . Menzerna is a bit of a pain to use, I agree. However, I found it to be a lot like Finesse-It II (which, at first, was also rather difficult): you need to be patient. Buff until almost completely gone for the easiest removal, and definitely wipe off residues immediately after buffing. If the residue is stubborn, I've found that a prep-solvent (I use Hi-Temp's Prep-Solve) makes very short work of it. Since you mention you have AIO, that can also be of use in removing residue. If you plan to use AIO after FP anyway, wipe off the FP as best you can, and don't worry about any minor stuff left behind; AIO will take care of that.
Because Menzerna can be difficult to work with, it may not be for everyone (ease-of-use can be a big factor in product choice). That doesn't mean that Menzerna is crap, and it doesn't mean that anyone having problems with it is incompetent. It is what it is: a good polish that can be problematic to use until you find the right technique. If you find Menzerna yields results that make the extra effort worth the trouble, use it. If it's a hassle, there are any number of easier-to-use polishes that will provide similar results. In my personal opinion, I found IP/FP to provide excellent results, but I prefer working with more user-friendly polishes (which is the 1Z lineup of polishes for me these days). Again, that's just my preference.
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