Bill--Is your Scott one of those made for the American market? If it is, you might want to try it with good quality (AA etc) 3/4 oz target loads and take a look at your patterns.
One of the issues when you get down to 3/4 oz is that you may need to compensate for the lighter load with either a tighter choke or smaller size shot, as Miller suggests. I usually shoot 8 1/2's in my Repro 28ga, choked more open than your Scott. If I don't break a bird at skeet (ranges probably up to 25 yards), it's shooter error and not because the pattern is insufficient. That being said, if you think you're going to take very many 30 yard shots at grouse (more likely later in the season when the cover is more open, and less likely to encounter woodcock as well as grouse), then you may want to go with 8's or even 7 1/2's in a heavier load. Or tighter choke.
