In reply to webbie88:
Have you joined one of the Glasgow climbing clubs? (I don't know much about Glasgow ones, being more familiar with Edinburgh), I imagine there are quite a number of good Scottish Winter climbers there, so if you look like a promising apprentice, someone should be willing to take you out on a Winter route.
That you already have familiarity with the harsh Scottish Winter conditions from walking and climbing ridges in Winter and can therefore keep yourself warm and protected against conditions is a considerable asset, also that you are familiar with ropework and the like. Low grade Winter routes are not necessarily that much safer, but will be less committing generally.
Scottish Winter climbing is also a good preparation for Alpinism, not so much for specific techniques or issues (they are fairly different in that respect, e.g. you try to avoid going out at all in the Alps in bad weather, it is normal in Scottish Winter), but in terms of the feeling of seriousness and the need for composure, there is quite a lot of cross-over.
Post edited at 12:36