This locomotive has had about an hour of break-in and testing time for the heavily upgraded configuration. The Puff N' Chuff feature worked flawlessly for the duration of the testing, with the only downside being a smoke fluid guzzler. I also kept an eye on the heat produced around the model. The only part warm to the touch was the area of boiler above the smoke unit, which I figure is normal.
Frank has been doing this for a while and the people who post here about his work never seem to have an issue. Maybe he does somehow modify his units to be safe with the Lionel electronics and he's just not saying. In my conversations with him Frank was very soft-spoken and not all that talkative, so I wouldn't be surprised if he simply couldn't be bothered to go into detail about his units and figured telling me it's fine was enough.
