Thanks Alpha! For some areas, I made use of a template using cardboard and then flipped it on the back side of the anti-slip tape then cut to shape. For some, I just drew directly on the anti-slip backing, with lots of measuring and guess-timates, then cut to shape. Not one of the anti-slip tapes here is of multiple pieces. All are in one piece. For the anti-slip on the blast panels, I did some measuring and drawing on the backside of the anti-slip. The circles I punched out with a punch and hammer. Most of the cutting was with scissors, some with the knife.
I didn't use the sandpaper route because the paper would be too thick and thinning it by removing most of the paper would be difficult and uneven. Anti-slip tape, OTOH, is thinner with the additional benefit of being self-adhesive. I actually have some acrylic paint and a stiff brush to do the anti-slip-by-paint-stippling like I did to my 1/35 Challenger 2 build many years ago, but then I found the anti-slip tape at the hardware so....
I think the turret is ready for a coat of grey primer, but I don't have one right now plus the weather isn't nice for painting (raining here since yesterday).
..... 
One Day ATC... I need to hear your definition of Tedious...cause DAYUM!...what you make look like a walk in the park....is mind boggling and waffling in Tedium for the rest of us normal people 
