Other reasons for not allowing it.. I SEE WAY TOO many people crash drafting, not bump drafting. More than half of all that bump draft in SM have NO idea what they are doing. If you are going to hit someone in what amounts to a small collision, YOU NEED TO GO AROUND. I have seen "bump drafting" incidents that breaks diff housings. Now, if you ask every SM driver, they ALL know what they are doing. If done right, it is very safe, done wrong accidents and damage can occur.
I bump draft all the time with teamates or competitors to try to get away from other competitors. I do it selfishly to help myself. That being said, if it went completely away, i don't think the racing would suffer all that much.
Jim
^THIS
Last season, 3 idiots decided to "introduce me" to bump drafting by ramming my bumper instead of going around me. One asshole did it to me going into a corner at T4 at Laguna. I almost spun. He did it again going up the hill after 5 for some idiotic reason instead of going around me.
Another idiot did on the straight at Thunderhill. The car did not feel very good getting pushed. I thought I was going to get spun - while in 4th gear at speed 4 feet from the wall. When I went to talk to said idiot he responded "don't worry. If anything happened to you, I'd (he) get blamed." The thought of the possible damage that he could have caused to me or my car by the spin from his "bump draft" never seemed to enter his skull.
Mind you, that was my rookie season and I was running a fluorescent orange rookie plate on the rear.
Keep the no bump rule. If you guys want to bump, bump only people you know and have agreed to do it with. If you bump me, I will file a complaint. I have no qualms about it.