I have run an Historic Formula Junior single seater race car for 3 years ( Champion 2021& 22) with no misfires whatsoever. Bosch High Performance Blue Coil, Swiftune Condenser (never had one fail in 10 years) and Lucas points from Martin Jay ( distributor Doctor). Electronic ignition not allowed in our Class, buy not needed anyway. Historic Grand Prix cars in certain classes aren`t allowed it either and again, set up properly with Swiftune condensers not usually any problems. If there were to be any problems, then it`s easier to replace points etc than having to carry a spare distributor fitted with an electronic system, and having to reset ignition timing etc by the roadside, IMHO.