I'm sorry ymarrianne,..but I cannot understand your dealer. First of all, it doesn't sound like he put much effort into solving the problem. Also the fact that he took back the I-Match without attempting to find out "why" it is doing whatever it is that it's doing.
If he sold you the "Related-Equipment",...it is "his" duty to ensure that it works "WELL" for you the customer, . . OR, darned well establish good reason WHY and then do his best to make whatever changes and adjustments it takes to MAKE it work "safely" for you. "IF" that proves an impossible task then fine, but only after he has made "every" effort to satisfy you!!!!
Perhaps I'm jumping the gun here? . . . has he done this?
As stated earlier, my Bhuler Rear Finishing Mower worked fine on my JD-4410, but when I traded it for the JD-3520-Cab, . . it did not. The dealer inspected it and solved my problem with an Adapter-Kit with longer arms for the mower that allowed the top "hook" to slide in and get a "good" grip on the pin.
I'm wondering "IF" your problem might be similar? It really is a shame to give up the "work-saving-easy-con-discon" features of the QH. Personally I would not give up so easily on this. As I said above this really is your selling dealer's
duty, . . No, not "just" his duty,..but his OBLIGATION to you!!! I would most certainly push him for an explanation, and don't walk out when he shrugs it off as "just one of those things that don't work sometimes"!!!
I can only "suggest" that you ask for a reasonable explanation why ? I'll bet if he just sold half a dozen of the same units to a landscape contractor, he would be doing his best to make it good!!
My very best wishes to you,
. . tug
PS: "IF" the PTO was contacting the QH, . . you best ensure it is not even the slightest bit bent. It will vibrate and rip the bearings out of your tractor if the slightest bit out of line. DO NOT cut it till you have it closely examined, preferrably by an independant shop. Under the circumstances I think the dealer should make good on it. I KNOW this is much more than you want, but I'm trying to help. Help yourself to whatever you choose.