The heat lamp did help for the couple parts I was having issues with. I now mostly use a mini trident for most of my ABS printing. The heat lamp only comes out when I need to do a large print on the Voron2.

There was a Nero3D (Canuck Creator) video a while back where he said acrylic is better at insulating than ACM so I went from ACM to acrylic. Plus the smoked translucent acrylic looks better. I bought the ACM from PrintedSolid originally and have since reused it for other projects.