This was a difficult area for me. It slopes L/R & Front/Rear in this area. The closer you get to the front the more the slope angle increases.I must have goofed this area up 5 times before I bought this adjustable arc sanding block. The best $25 I've spent in awhile.

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I'll take one. Where did you get it?

Uses PSA or Loop Back paper. I prefer the PSA. Just remember to attach the sandpaper after you've set the arc. Besides, it's easier to check the arc setting against the metal before the sandpaper is on. https://www.amazon.com/dp/B09PRPPQRX?psc=1&...product_details

Thanks for the heads up!
Getting one of these for my tool box

I don't plan to do my own body work but my tool-whoreness may not be able to resist!
Kent, your prep looks like it's coming right along! Nice job, can't wait to see it in color.

Grampa’s weed puller. Easy to follow instructions on the handle. No measuring or spraying. I hate Dandy Lions. They flourish in my neighbor’s yard. I can’t load a single, 1, picture.