i tried a different variety 59k 56k 100ohm 10 ohm, that's all i i have handy.
I also read up on your trial and errors degenetrons and did attempt to bridge the - and +, i used the 10 ohm doing that and got a funny smell and the resistor got very hot.
I think some extra coding or cirucuitry was added for mouse stability and now the chips on my board aren't liking our trickery, cause as soon as the mouse goes in, it works fine.
Another thing i found out is once the mouse is plugged in and recognized, it can be removed and the buttons still work. It's like it only needs it for initial bootup and then thats it.
After looking at your smartjoy degenetron, I think you got a hold of the knockoff version. The case on your version doesn't say smartjoy frag, I did some research and a knockoff version was fabricated soon after the original versions were made. In your post you said the memeory slot just wiggles off, the one is mine is soldered in really good. It's gonna take some desoldering to get the pins out. So you can see where the 3rd party cut corners. I buy from a guy in Florida, his are the real deal. This may be why you were able to spoof your version, sad thing is the knockoff works....