People change, parts manufacturers change, rules change, vehicles change. Reverting to 'electronic free engines' isn't really a step backwards, just makes them simpler. The optimiser is a brand new block design with tried and tested old school parts. Works for me because I can fix it. What is of concern is the detail bits that either get overlooked or ignored. Stuff like overheating is always going to be a problem due to avail radiator size and a large block jammed in a shoe box, so the owner has to compromise and accept the shortfalls for owning something different I guess.