Put yokes back in them, shims will not give the same amount of adjustment. Everyone is built different and has a different grip and body alignment. With a yoke you can fine tune the bow to fit a person, with a shim you can only get close and then have to start messing up center shot. Even guys who have been tuning bows for guys for years have videos about how the new Hoyt’s you will want more inside grip pressure to get a perfect bullet hole. Same BS came out with Levi years ago with Elite and Prime was the same way. Eventually you have to tune how you hold the bow instead of tuning the bow for each person. Obviously some people already grip the bow naturally this way so the slap in a shin and boom perfect arrow flight. The next guy may never get perfect flight with the shim system without having to relearn to shot that particular bow and then if they switch bows again relearn how to grip and shoot it.
All bows should have a good micro adjust system like a yoke, the new elite system or bowtech. IMO Hoyt took a huge step backward when they ditched the Yokes and until they change to a better system I will it buy another. This is coming from a guy who has been pretty faithful to Hoyt since 2009 owning multiple Carbon bows and several aluminum. I moved from Hoyt for two years to a bow that essentially tunes like the new Hoyt’s and moved back and planned to stay. Unless they come up with a fine tuning method that works well I will take my business elsewhere.
I see no disadvantage to cam & 1/2, I just ordered strings for my RX4 and with factory strings my tune has not changed in 3 years of hard use and thousands of shots. My draw weight, BH, peep rotation and draw length were all identical to what they were after writing them down when I first tuned the bow. They are trying to fix a problem that doesn’t exist. I think they dropped the main reason so many people stuck with them for years, now they are pretty much the same as 80% of other manufactures and behind bowtech and elite.