I am printing a job with plastisol where 2 colors go over the collar. I made a platen with 1/4" neporene and that helped a lot but there is still some buildup right around the edge of the collar. I am going to make another platen with 3/8" neoprene to see if that helps. Anyone have any tips on how to reduce ink buildup around the collar? Is there any way to smooth out the buildup with an iron and some wax paper or something like that?