What does that mean in practice?
My interest in doing an IMC is purely for insurance in the event that things start going wrong. I'm not so worried about legal currency, because I can't imagine a situation in which I'd head up to fly if the weather was bad. I just figure that an IMC is worthwhile if it gives me a better chance of getting back down again.
On the other hand, I don't want to be overconfident and think that I have skills that in reality I've forgotten through lack of practice. I'm never going to do lots of hours each year, so I'm not going to want to spend a lot of time and money keeping a rating that I don't plan on using. Is an IMC still worth it, or would it end up proving that a little knowledge is a dangerous thing?? I'd guess that a (underused/lapsed) IMC is better than no IMC at all, but...?
Cheers.