Raise3D N2 extruder spacer

I was having problems with air printing on my Raise3D N2 right extruder (dual setup). I tried loosening the screws that hold the acrylic panel on the front of the extruder, but it didn't solve the problem, so I scanned and traced the panel and created this spacer, then laser cut two copies in heavy paper. It seems to have fixed the problem, at least for now. I might also try a dry lubricant in the channel just in case. Raise3D is working on a v2 extruder which will presumably fix this problem, a