Hi Backpacker, no worries. If you want to get involved being in Gourock isn't a problem in itself. With all volunteers it's a case of juggling your own hillwalking with your bothy activities and fitting dates in - can be a hassle if you don't get away often.
Rodmiester, yes the MBA looks after Corrour and yes, I am a member of the MBA, but I don't know if all the people on the toilet rota are members. I've never been too anal about it (see what I did there?): if someone wants to help and can fit in, then they're welcome. When we were renovating the Hutchison we had one volunteer who was a DofE supervisor and didn't even know the work was going on, but he had a couple of hours spare and pitched in. We almost got the BBC guy to lend a hand too, but he claimed he needed both hands for the camera!