IHVT vs. separate tripler and flyback transformer

[JohnCT]

From my experience, triplers failed at a much higher rate than integrated flybacks did (with those exceptions you mentioned).

I think it came down to two things that made a reliable IHVT possible - better HV diodes and better insulation potting compounds. Both of those advancements would have made triplers more reliable as well but I don't know if the upgrades made it to the last gen triplers (maybe they did?)

John