so you can plug anything into these pedal switchers then. it doesnt matter if there gain devices or modulations.
so your saying that the order they go in does affect the overall sound.
It affects which effect affects which effect (if that makes any sense at all
) so yes it will have an effect on the overall sound.
An example would be placing a delay/reverb after an overdrive vs placing it before an overdrive. In config 1 you would be delaying/reverbing your distortion (which is what most people do) whereas in config 2 you would be distorting your delay/reverb (which I don't think you'll find will sound very good at all).
and that all the pedal switchers should go through the front end?.
No...UniVibe's should go in the front end. You can place Pedal Switchers pretty much anywhere you want. If you place one in your amp's FX loop I would suggest using the unbuffered input on the Pedal Switcher.