The catcher may clear the inner part of the mower body, some probably do, I have the same situation fitting a Rover catcher on a high arch Victa. If you lift the flap or if the flap is off you can see down in the left corner if it is touching and holding the catcher out about 5mm. I usually cut out a strip about 5mm wide by 80mm long and then the catcher sits up snug. With the door on top of the catcher, pull it up as high as you can at the back (put a brick under it) and you will then be able to see where to river the piece of angle onto the door, it is up about 20mm from the bottom. If you don't lift the catcher up tight with the angle the catcher will keep falling off when you are mowing
