i've never used rackmount gear before and i need someone to explain how it works
There's so much, you just can't explain how it all works. Maybe you can be a bit more specific? (not trying to be an ass).
for example the boss gt pro. do you still have to use pedals to activate the effects,or does it have a footswitch? im sorry im a noob when it comes to anything other than an amp and a guitar and a few pedals