Anyone have any tips for sanding contours/curves like a metal dash and inner cab curved corners? It's in a 1950 Cheby truck if it matters. Ive previously tried by hand, using air sander but doesn't fit well because of windshield. I've also tried Roloc wheel sanding with my angle grinder which left lots of sand lines in the paint I was prepping. I was considering chemical paint remover. Just wondering if it's that painful for everyone or if there's a tool/technique that works well. Thanks.