NO NO NO you misinterpueted it ..

Paint thinner doesn't work to take off the remove zit residue. And Remove zit isn't water soluble..

So you have to get formula 911 to get rid of the residue so it doesn't further take the dye out of the pony.

i personally have had no trouble using it without the 911. i just scrape it off...as somebody in this thread mentioned a dry tissue does work really well. once the removezit is "dry" its crusty and comes off really easy for me. if i feel its necessary i will use soft scrub for a final clean, but i always wait before doing this in case there was any swelling of the vinyl. also as mentioned take care with using it on dark ponies, and make sure you always test a spot.