Hi, what do you use as sand blocks for fairing?
I watched some tutorials but they were all about wood working. Wonder if there is some adjustment specific for composites.
So...
Wood (btw, with or without pads)?
Foam? Xps would be ok
Commercial available? Ifound permagrit blocks fantastic but they only make the coarser grits.

Thanks

Vacuum really helps and works great, I would definitely recommend it. Even if you dont use it, it's nice to have the option. 

I wouldn't get the long one or the medium one though. I have them, but have used them maybe once. Get the medium one. Can't remember the length, but it's like 200mm or something. not the smallest one, but the one up.