I ordered one of the kits from RMATV
I have used on several breaks in fenders and headlight buckets
It is like anything else the more you use the better you get
There is a knack
When I started Look bad But it was a buddys fender ( Coud not see from my house)
Now if need to repair crack not an issue the kit comes with clear plastic and some colored
I did also order extra plastic clear it does blend fairly well can sand
I have found best repair from bottom where not seen so easy and just smooth top
Do Not try the orange on red fender looks bad
Just my input
Thanks
Ray