Hi Jake.
This is all good news!
Currently in the process of compiling a hex with two programmed curves. Testing them today. What I am doing is adding small .100 spacing headers to the timer board to accommodate the new switches, one for the kill button which is a N.O. Momentary switch, the other is a 2 position push on- push off for switching between the 2 available curves. I'll post a picture when I find out if it is working.

The ignition boards I sent you as testing platforms will be used also with a wired socket to test 3 available scr's. I use either an EC103m, BT151, or a C106m. All three have a similar gate trigger voltage control turn on. All work as expected in my circuit. This enables me to test the small variances in the gates for proper control by the timer board. This test will point to the best one for the circuit. All three have the 600 volt ratings. The EC103M is only a 800 mah current rating but works great in the ignition circuit. Another choice would the X0405ME but is hard to find and costly if you do find them.
There are 2 different pinouts between the EC103M and the larger to225 case style scr's though so some circuit modification is necessary if changing types. This is why I added a header to my test board for switching between them.

Hopefully testing the resulting hex file today will work as planned. Results will be posted.

John