It may be a big secret everywhere else, but apparently it's not such a big secret on this forum:
Your opinion is definitely shared by a lot of people here. I haven't gotten around to trying it myself. My experience was similar to yours because I had arm problems with the APDGT. The difference is I switched to the PK Ki 5x, which is the update to the 7G. There are mixed opinions about whether or not it was an improvement. That's probably why they still sell 5G's and 7G's.