Hey guys i can’t seem to do hard surfaces for the life of me. I use masks, i use the new mPolish brush, I’ve tried flatten, but no matter what i do my lines never come out smooth. They are always wavy and i can’t fix them. They end up like this:

Can anybody help me out with some information or a tutorial on making cuts into things like armor or smoothing the result or anything like that? I could like to make clean separations in say armor plates or in this case the lining of a vest.