The drill w/TS paints....clearcoat w/in ONE HOUR of color coat, or wait one month. Needless to say, I do it w/in one hour. You can always mist coat some fresh color over previous color so the clear will work w/o cracking. Be CAREFUL how you apply the clear, mist coats slowly working up to wet coats. No matter when you spray, if you push the clear too wet too fast, you'll have problems.
Remove TS paints w/91% Isopropyl rubbing alcohol (here in the states it's available in most pharmacies/department stores/grocery stores...sometimes it's 91%, sometimes it's 99%...regular 70% isn't strong enough to remove TS paint). Works for their acrylics as well.