duke, still doesn't get it.
though it is true that most methane-fueled engines are constant speed, constant load[driving compressors, generators, pumps], the instance that i cited involved transit bus prime movers.
similar to an automotive application but even more demanding.
i could go further in detailing how an engine manufacturer goes about selecting original equipment components. suffice it to say, i have found that virtually no engine manufacturers have specs and/or qualifying protocols for electrical ignition components. contrast this with the specs and qualifying protocols for compression ignition components which are detailed and written.
lastly, concerning splitfire. you link that to a "guy". if a "guy"is a corporation i guess that will work. but the autolite operations of allied-signal corp manufactured them. and they were marketed by the same outfit that markets prestone anti-freeze. if this is a "guy", i am napoleon.
beam me up scotty.