Guys, I feel your pain with the Procom units. It is always starting, idle and low throttle opening that isn't easy to get right and Procom didn't get it right for the early non- programmable units or these later programmable units. If I knew the base advance curve they use in their units, I could write a map that would kick arse, but that information understandably isn't forthcoming.
I'm pretty sure it's the positioning of the igniter on Americas and Speedmasters that cause the units to fail, just in the right position to be cooked by the engine and also get nice and wet in bad weather. The Scramblers don't have a problem with the exact same 270° igniter failing because it is positioned under the seat and out of harms way like the Bonnie and Thruxton.
Repositioning of the igniter would be a nightmare mainly due to needing an extension loom with the correct connectors fitted, which are virtually impossible to find. I'm surprised nobody has come up with some sort of weather guard / heat deflector to protect the igniter unit for Americas and Speedmasters.
Your best bet might be to keep your eyes open for second hand units on eBay, there's an 06 Speedmaster igniter on there now for a reasonable price.
Anyway don't forget I offer a service just to raise the rev limit on OEM igniter units as well ignition advance modification.
Keep the rubber side down.
