The stratoblaster fits right into the recessed input routing on a standard strat. The electronics sit in the routing and you wind up with a flush mounted input and a little toggle switch next to it. There is a little hole with a trim pot. When I had one on my strat, I found two distinct ways to use it. One was to set the trim pot for a modest boost and leave the stratoblaster on at all times. This gave the guitar a hotter signal resulting in a cleaner, fuller tone. Alternatively, you can set the trim pot for a lot of boost and flick the stratoblaster on for leads and off for rhythm. Sort of like having an on-board stomp box. Since I wasn't using the whammy bar (and had it blocked), I used the vibrato routing on the back as my battery compartment. I believe you can also fit the battery (single 9v) under the blaster. However you use it, this little guy gives a lot of bang for the bucks.
Bill, tgo