It is not always necessary to actually adjust a slide for it to fit better. On our '07 Revolution the large front right side slide was not closing tightly. There was a small gap, about 1/4 inch or more of space at the bottom while the top was very tight, squeezing the rubber bulb seal. The dealer techs resolved the fit by inserting some rubber hose inside the bulb seal, along the top, so that it would not squeeze so easily. This caused the bottom to pull in so that the fit is near perfect. They simply pushed the hose down the centre of the bulb seal, from one end to the other. There are bolts for adjustment at the bottom of the slide but they would only raise or lower the slide not tilt it. I thought it was a 'nifty' way to adjust the seal.
2007 REV LE