With our current campaign still going strong after 8+ months (a record for us), myself and my group were hesitant to set it aside to try something else, since we've already seen some of our past campaigns lose momentum and never quite get it back. Thus, I set about getting the group to agree to switch (more or less) to the DCC rules for a while, to test them out. There was only one holdout - our group's token powergamer. I did some analysis and found that the level 5 DCC RPG warrior actually fared slightly better in average damage (using the same d12 damage Pathfinder weapon). I showed him this and he jumped on board.
I set about trying to convert the existing Pathfinder characters to DCC, as much as possible, without taking away too much from them. I think we did okay, but these characters are definitely more powerful than your standard DCC guys, mainly due to ability scores being much higher.
If you care to see the conversion notes (still a work in progress), they can be found here:Pathfinder to DCC RPG Conversion Notes
I've also done the writeup for the barbarian, which should actually be pretty well balanced with the DCC warrior, just with a few more fiddly bits:DCC Barbarian
Some people might find this interesting in that I attempted to guess what levels 6-10 might look like. This is a necessary consideration for my game, since the group is level 5 now and will be hitting level 6 well before the official DCC rules are out.
At any rate, our first post-conversion session should be sometime in early July, and I'll be sure to post about how it goes!