Lance, can you share a picture of the hopper? Though the machine is by Games of Nevada, the hopper is most likely a Bally. The agitators are sized according to coins used. A 3 leg would be for coins larger than quarters, like Ikes. 6 leg are used on quarter and smaller. There are a few different sellers on eBay offering replacements.

Is it possible the firmware is the issue? I didn’t see any references to
Firmware: GUHR119011 TKT-22

I think it's firmware.
Netplex would be GUN0010506.
USB would be GUU001A508.
We don't have anything, at all that uses GUHR119011.

Double diamond is a Type 0 game. No special features.
There are variations like a 5 line Double diamond. You have 3 horizontal paylines and two that are angular.
Then there are clones of this game (same chips and pay table) but different glass and reel strips I think one is called Gold Strike

Double diamond deluxe is a Type 2 game that nudges both up and down.
If your symbol is a diamond that is above the pay line it will nudge down to be on the pay line.
If its below it will nudge up....
Slam dunk only nudges down, Balloon bars only nudge up.

There are other themes like Haywire where you hit the haywire symbol and one of the reels spins backwards, and then they kind of jerk and stop, Spin to you win. You hit a spin symbol and the game just plays and plays until you hit a winning combination.

Howdy,
    I also have a W.M.S. BB1 Printer with all wires and a few rolls of blank printer paper.
    125.00

Anyone know about the S+ double diamond deluxe or is it just a IGT sales gimmick.