I use a Graco airless sprayer for everything, including trim. You can use an HVLP for your trim, but if you have a lot of trim to paint you're going to have to refill the cup a lot. You'll also have to thin Pro Classic because it's too thick for an HVLP. An airless sprayer is better for production work and you can get a nice finish using Pro Classic and a fine finishing spray tip. No thinning needed. You'll have to mask the floors and surrounding area anyway, even with an HVLP. Masking is part of spraying, but you're going to save a lot of time not having to brush and roll all day. You'll also have a better finish. Use a hand masker for the masking too. It's a big time saver. I wrote articles about masking for spraying and spraying tips. If you look through my articles you'll find it, or do a search on Den Garden.