Awesome job on the weathering! My Sherman is in bits at the moment (getting it ready for paint stripping and respray for summer. I am a big fan of Tamiyas 1/16 tanks and the Sherman is a belter
A couple of tips on the Tiger 1(hope you dont mind) if you are going to dirt track her.
1. Remove the rear mudguards before you lose them

2. If you have metal tracks make sure you install gear down upgrades and drive shaft supports.
Your motors wont last 5 minutes without them (I learnt the hard way!)