I have PowerSpec 3D Pro 2 printer, Micro-Swiss all-metal hotends, Printbite, E-Sun PETG filament, and Simplify 3D. If I'm printing something that doesn't have flat bottom, I have to use supports but supports may come loose and get ruined prints. I tried using rafts with supports but it's hard for me to remove rafts from prints. Is it possible to use PVA filament with PETG filament? If not, any suggestions?