I built Sypdermags back in the day and the trick is to use the ULT on/off.
I also developed a new grip frame that is on hold until boards are available. This one uses a UTB which is now obsolete.
MMMM look at that trigger stroke, that's in the FULL forward position. This thing is insanely fast!
What spesific info do you need?
I do have a new Spyder solenoid I never ended up using if you're interested, I would go 10 plus shipping on it(?) I also have a new and used Spyder Eframe if you need a donor.