to gelcoat or to use duratec...advice needed

I’ve been using an eastwood evolution hvlp w 2.0 tip to spray duratec and it’s worked well. It might be a better gun than other hvlp as it uses a higher line pressure (43psi) where other hvlp guns I have spray at 20-30 psi. I kept the pressure at around 45 and it worked well, wet coats were best.