I'm still on 220 and haven't applied timbermate yet, originally I was planning on applying timbermate at 400 and then sand that back to 1200 and then start with paint but I currently only have up to 400 and need to get paint on sooner rather than later so I might try put on the timbermate at 240 then go up to 400 before paint. Thanks for suggesting just going straight along the edges I had been getting a bit sore from constantly trying to sand in different directions