I bought the stupid little harley pressure gauge with the 90 degree head (like I don't own enough pressure gauges). Gotta be the 90 deg head, 45 won't cut it. Same for the filler head on the compressor ... one of those round 90 degree things.

Then I make the son get on his knees and bang his hands through the rotors and rims to fill it. (Love you Mark)

 

I changed out to angled stems last tire change. Makes a huge difference when filling the tires. Especially the rear. Good luck.