When we first starting printing with our Form 2, we were trying to only use YM7, but our parts were always still tacky. After experimenting, we ended up using YM7 as the first rinse (shaking for a minute then letting set for another 15 minutes), then using IPA as the second/final rinse. Our parts have been turning out great since that change. We’re a little disappointed in the YM7, but it is still helping to minimize the amount of IPA we end up using.