More Progress!
I found some 6" pvc pipe at home depot and used the heat gun and a few layers to open it up to 7" to make a sanding block for the top/side corner of the shell.
Sanding we/ 36 grit:
Once I had the curves cut, I went back with a regular flat sanding block and 80 grit and used it to smooth out and blend the corner into the side.
And here it is on the truck! I'm still working on cleaning up the edge along the cab. The shell is a hare larger than the cab in some places. I'm wondering if I should sand it down all the way around the leading edge so that it is 1/4" inside the cab profile. Any ideas?
ABA testing will defiantly come next week! What would be the best testing to do? We have good hills around here for coast down testing in neutral or I could record fuel used along a few miles of freeway where it's flatter.