I don't want to join in the argument going on here, but I have a couple of points to make:. .. .1. Isn't a key word here 'currency.' Would any professional pilot whose day job is flying jets multicrew, with a high level of automation really want to make a filthy weather approach down to minima in an single pilot, MEP light twin if he hadn't flown IFR in such an aircraft for 11.5 months? Especially if the day was complicated by a late change of STAR, change of runway, approach aid out etc. Airmanship comes into this equation and I would say (IMHO) the difference is so great that its a situation to avoid if at all possible.. .. .BTW, as an amateur pilot, I operate on the basis of one IFR approach per month as an absolute mimimum. But then I didn't find it straightforward converting from flying IFR in a C172 to IFR in an Arrow!!. .. .2. The mimima reflect the difficuties of single pilot IFR: ILS Cat 1 single pilot, vis/RVR 800m; ILS Cat 1 multi crew, vis/RVR 550m.. .. .Regards