Doesn't it feel like your holding a bomb when you have the springs compressed and you have to move them around? I had an even worse set of compressors than you have - and did have a problem. Of course, I had visions of putting a nice hole in my buddy's garage if the spring ever slipped out - some day I will invest in a nice set of compressors.

2000 S4 6-speed
Black/Onyx
APR ECU/H&R Coilovers/ABT exhaust/
Forge BVP/Snub Mount/XM
1992 MR2 Turbo
Eibach Springs/Tokico shocks/MBC
Dark Green