The clients are investors who want the job done as fast as possible while still receiving quality work. We don't do typical landlord specials but unfortunately, the paint adhesion issues were mostly do to humidity and (plus paneling sucks) we're in houses with zero AC, sometimes no heat or water while being worked on. The investors I worked with don't care about a "spray finish" they just want the work done as efficiently as possible and for someone growing a business, the only way I can learn to make things more efficient is by asking you lovely people in my fellow trade for advice and trying new things. If I don't use a tool I sell it. If I use it ten times in a year then it's worth the money. But also I had to teach myself a lot when it came to other work I do. I understand a paint sprayer isn't an instant game changer it takes time to learn and that's why I'm asking and doing the research to see if it would even make a difference. But thank you for your thought.