Ya, this is interesting.... if you're roping.. why can't you see the guy? I mean, as you come back down, you are the one who determines the attack angle. I do a bit of roping... not sure wher your difficulties lie. Heck when roping, I'll roll over on my back sometimes, but hang there(fly upside down) for a bit because as you go over on your back your victim expects you to come straight down, and begins his evasive, effectively telegraphing his move to you. Or, and my favorite, he will think you're bled out of E and hang his nose longer, giving you that canopy shot you want when you decide to come down. This method also affords you a great view of what is going on under you.. it's a nice twist on the straight and spiral ropes and sometimes even catches the wary off guard.... try it some time.

Also, don't worry too much about putting a lot of bullets(thus forcing a long gun solution, and a longer lead shot) in your victim. If you've roped successfully, your shot will be from close range at a slow target. A well placed snap shot will get the job done. This way, yout don't have to worry about pulling so much lead, which has 2 bad effects: pulling a lot of lead is a harder shot than the short snapper, and it also burns precious E in case you want to go back up, rinsse and repeat.
Edit: Just out of curiousity mos, I looked up your gunnery numbers. You may want to clarify your CPID, because the guy with the name of Mos has hit %'s somewhere between 1 and 6% on his tours. Heh