Well after getting better explenations as the ones i got in the beginning of the threads, and some pictures (thank you woody) on the uk forum, I am satisfied that a system like Stealths sodastream is as safe if not safer then regular co2 systems.

However, there have to be better guidelines than the ones ive read in the uk and this forum, maybe even a seperate soda stream system topic in the FRA rules. That way we all have some framework to start with when i have to tech-check a robot using a system similar to this one.

Robotbuilders have always looked for the boundries of the rules, and a new approuch is always encouraged, but it should be substanciated by a ruleset and not by the guy knows what he is doing. Of course that is a factor, but not measurable on the table.

So can someone have a swing at a rule-set we can all live with?