I have the SD 3
Band system and pup in a Warmoth gecko 5 and it is OUTRAGEOUS. all settings are functional and I was also surprised by the slap switch
I do have the same preamp out of a bass now and it was installed first on a Sterling SUB4 and than on a Sterling Ray34, both sounded amazing with this preamp, did not even need change the original pickups!
The thing is since I seeking the 2 band Stingray tone and I am not sure how close it sounds to a 2 band SR stock neither have a way to compare both.
If was close, I would install the SD on my Stingray 3 band instead buying a John East pre.