"SW makes a Pro Classic, but unless you have experienced paint hands, it can be tricky to get the right results without practice." brush, this is so true. This is not a product to put in the hands of an inexperienced DIYer. Especially when there are so many other more DIY-friendly products to choose from. I think many a "pro" painter is out of touch with DIY reality. Just because they can make a product work for them, does not mean that any one can. Once again your ability to see more than just one perspective is extraordinarily helpful to the people on this forum.

Sorry! I should've stated that better! You can topcoat most primers in 2-3 hrs. Dont' leave a primer unpainted for more than a month. They get too dried-out and brittle. I should've said... >>> Once the primer and paint are applied, the adhesion process of all coats takes a while! You don't need to sand out ALL the gloss. * Just a moderate "dulling" of the existing sheen. * It's subjective...but I'd keep sanding if I could easily see a reflection. * I'd maybe drop down to 100-grit for the 1st pass. Then, a quick 2nd-pass with ~150-grit. * If you're near a C2 dealer, the C2-SAP (Sandable-Acrylic-Primer) is great for this kinda work. This is neat for REAL fussy applications. After priming, this primer sands nicely for extra-smooth topcoats. Faron

Sometimes after full cure, paint that can easily be removed with your fingernail will be stuck pretty well. Usually after one day though I can do the fingernail test and it is pretty well adhered. I imagine it depends on the brand of paint you are using.

I don't think it is worth it to strip the paint in your entire house just so that you can convert back to oil. Stripping paint is a very labor intensive and messy job. Paint will chip off in high traffic areas with latex and oil based paints. You should remove what is loose/not ahdered by scraping and sanding and then repaint with a 100 percent acrylic paint. Many DIY painters do not sand well enough and that is why the paint may not be adhered in some areas. You really want every inch of the trim to be very dull and clean before applying any paint to it.