did a seat repair today, I was'nt looking forward to it because it was on a DIY repair done by the customer. it looked ok but when you ran you hand across the repair it was badly rippled.
they just wouldn't pay to have it done right, so I did my best, but it looked crap

the ripples were so bad that sanding it down removed the grain-pattern. I should have walked away from it, but he was happy to have it just looking better.
I think I'll get a bit more training on repairs before I do another.