Did you remove the shipping brace ??
Jeff, might be too easy but the QB fuse comes shipped with a heavy U shaped brace across the fuse to stablize the "box" while in shipping. Without all of the panel pieces installed, the fuse can be spread a little bit but I think if you cleco the brace back in place, it pulls it together.
Another "in place" holder is the panel substructure. One thing to keep in mind is that if you squeeze the fuse, you could be throwing the panel structure out of wack at the same time. I would suggest that you have all of the panel substructure and the panel blank clecoed in place before you decide that you need to squeeze the fuse. IF they don't fit, you might have a problem, if they do, you probably don't want to squeeze the fuse.
One indicator that the fuse "might" be out of line is to measure the distance between the inside canopy deck at the rear of the canopy rail compared to the front. They should be parallel or very close. ( 1/16 +/-)
Just measured my installed roll bar from inside to inside and it is 39 11/16. It overlaps the canopy deck by about 1/16 on each inside edge. The inside edge of the canopy deck just behind where the roll bar bolts down is 39 13/16 inside to inside. At the same spot, the fuse outside to outside dimension is 42 7/8. This is about 1 inch behind the roll bar and on a 7 not a 9 but they should be the same I think.
What if everything is good but the roll bar is still too narrow? Then let's see how much matters and where. I think the 7/32 spacing (outside edge of the roll bar to outside fuse edge) to the outside for the fuse is critical because of the clearance needed for the windshield so that the sides don't buldge after you glass it in. BUT I don't think that is as critical on the inside dimension as the outside. Meaning, if it is less than 7/32, ( say 3/16) you will have a hard time making a smooth transition on the windshield (it will stick out on the sides). If it is more than 7/32, say 1/4 inch on each side, the windshield sides will just recess more and be almost flush with the outside edge of the fuse. ( Not positive but I think that's the way it would work). I don't think that throws anything else out of wack!
So what I am hearing Jeff say is that his roll bar is too narrow which is much better than too wide. The important thing is that the fuse is the correct dimension so that the panel structure fits well AND that the inside canopy deck edges are parallel front to back so the canopy slide rails will mount properly.
I agree 100% with Vern that whatever you do, cleco everything in place first because all of the dimensions are related. Try not to force anything until you just have to and then as little as possible. If you do "adjust" anything much, try to anticipate where it will catch up with you. Sometimes it matters and sometimes it doesn't.
Hope this helps!
Bill S