No, that's perfectly fine, as long as you don't have like the majority of it sticking out, but that's just obvious. You should usually have a little hangover, so I wouldn't worry unless you got some mass toe drag going on. In either case, you'll feel what's funky. As far as the worry about the toe ramp weakening over time, I don't think that's a problem, all of your weight isn't going to be on the toe ramp 24/7. You'd probably have to exert a lot of weight on it to really weaken it. So unless you set it up improperly, in which case I don't even think it'll do much but bug the shit out of you, you should be fine.