I haven't been here in a while, its good to see some new posts.
Hi Terje
Everybody has to figure out what works for them.
I was never comfortable with a volume pedal, I prefer to use the volume knob on the guitar to play
slide.
I do like the volume pedal for lap steel, I think its quite necessary.
For me its easier to deal with the pedal sitting down.
For bottleneck electric, I prefer using a compressor to get plenty of clean sustain, and I usually add an overdrive pedal too when I want it to get nasty.
But if the pedal works for you, go for it.