I've tried the Windex method but had marginal results. I've been using MonoKote for about 35 years now and I guess I've figured out how to do things with an iron. I've found that I have better results ironing than I did with Windex. Like you, I found that I could peel the Windex applied pieces if I really tried. I expect my planes to last for years so I don't want the trim coming off in a year or two. And honestly, I can get better results with an iron.

I know folks who swear by Windex and their planes look fine. But none of them have held up to the estimated 1400 flights I've put on my Epsilon in 4 years of flying and still haven't had a single seam lift. Besides, my Epsilon looks Awesome! Well, actually at the moment it's undergoing a partial recovering, this old MonoKote has seen so much sun that it's brittle and hard to patch. Plus, after better than 4 years of daily flying, the plane was in need of a few repairs.

So my best advice is to find a technique that works for you. All ironed does work but can take years to develop the technique. Windex works too and is probably easier, even if it's not my choice. But do listen to the folks who advise sealing the edges after Windex, be it iron, acetone or MonoKote Trim Solvent. That may have been my error with the Windex, That's the weak spot. If the edges are sealed it's not likely to peel up.

Dave