Hello. Despite the fact that I joined the forum a few years ago, and that I have been reading you for even longer, I have never posted anything until now. I was learning a lot just by reading, and all my questions were always answered with a bit of search. This time I have, what I believe to be, a question non-dealt with yet. Thanks to readning you, I have understood the secuirity of the Coleman's Non-Return-Valves in gasoline stoves, the fact that the rest of the NRV always fail sooner or later (I have a kerosene Optimus 111 and a German Army's Geniol that failed), that this is not an issue for self-pressure gasoline stoves because thet have no pumps, and that the failure of NRV is only dangerous if you are dealing with gasoline. This last statement is because kerosene does not behave like gasoline, should the NRV fail. Now my question is about the lastest and discontinued version of the Optimus Hiker+, which is suposed to use white gasoline, car unleaded gasoline, kerosene and JET-A/1. How safe if the Optimus Hiker+ if I use it with white gasoline? Am I risking a NRV failure like I got with my Optimus 111 and then, because of the gasoline, getting a ball fire? Can I trust the Optimus Hiker+ when used with gasoline, if not as much, at least close to what I would trust a Coleman stove?