That is a difficulty on the 60" models. Unfortunately, with the tine spacing as it is, most manufacturers compromise on the hitch spacing or reduce the number of scarifiers to avoid this. We didn't want to compromise on either point, so we ended up with a rather tight quarters on the 60" and 84". The 48, 72, and 96 inch models don't present that problem.
The ball detent pen is a good idea, though. Maybe we can do some testing to see if they stay clean enough to not gum up the detent ball and still work.