Just for legal matters:
DO NOT USE AN IMPACT AIR WRENCH ON A SPRING COMPRESSOR.
You have no feel, may overcompress even. Or the compressor brakes.
(which happened to me once, I almost lost a finger).
Yeah ,ok
Well that is how I do it and never had an issue
Feel it or not you need to compress them enough to
Get on the strut
Yes if you are a complete dummy and try to compress
1 side then the other putting all the force on 1 compressor
You may break them
But I did say a little at a time
Little on this 1
Little on that 1
Will it fit over the strut? No
Repeat