I think it is past trying them out. I demoed them every time I would go into a store last year. I don't even do that anymore because I don't want to think about them. It is now just a matter of whether I want to pull the trigger. I would not even likely try any other clubs at this point.
A big part of wanting to change is how they fit my "Mind's eye". My i3+'s were that way when I got them, and now the offset is distracting and I even prefer less and less topline and sole width. Even though it is likely a swing issue, I can't help but think the offset is the cause anytime my draw goes to a hook, and the fact I can't fade the ball. Hence a confidence issue.
Looking back, I started out with Wilson Tour Cast irons that I picked up for around $200 unfitted, with little offset, small top, small sole. Probably more club than a beginner should use, but I was naive to golf, and after time I played them well. I can't help but think even though I was fitted to Pings, they match my game less and I took a step backwards in getting them. My game certainly did, and it took a couple years to recover. I imagine stepping into the MP60's would take little work. Just a matter of when I get tired of holding the trigger. My birthday is the end of this month and at this point I could be starting the season with them if I am not completely comfortable with the Pings when I step on the course.
I think this is funny because I went to G2s for one season and felt the exact same way. It took almost no work to move into the MP 60s, they were a natural fit, and it sounds like you are in the same boat! Hope that birthday turns out well :laugh: !