Tip for body prep...

[JollySipper]

I've gotten to where I like to block sand things to get them super smooth. Whether I'm sanding bare plastic or anything else, I use this method...... I simply wrap a 1/4 sheet of sandpaper (this is #2000 wet/dry) around a large artist's eraser. It's flexible enough to conform to the curves of panels, yet firm enough to smooth things out....

Anyway, I thought someone could benefit from this.......

[Bainford]

I do the same. All my sanding on the body is block sanding. Very effective at panel joints for keeping everything flat and sharp. I use a white vinyl drafting eraser, and have one end trimmed at an angle to get tight into corners. Sometimes I’ll trim an edge to a radius to suit a particular spot. 

[Ace-Garageguy]

Excellent tool for block sanding.  

[Draggon]

Nice!! ?

[bisc63]

Simple and effective. Thanks for sharing.