Roof Caulking Removal Tips

In the next couple of months, I'll be removing the old sealant on my roof and replacing it with new lap sealant. I have hand issues and would like to make the removal process as easy as possible. My Travel Lite Falcon has aluminum decking on the roof, so hopefully a bit easier. Any tips on removing the old sealant?

I'm also upgrading to a MaxxAir fan and plan to start with that removal for practice.