No problem, for these sessions I will do, not only will it give me a bench mark, but also the terrain that I intend to run in more. I do have a 10K road race in August, which think should be a good indication of true pace. We shall see!
Dont worry about the winter, Ive been out when it was -20 here, just means many layers and wearing my ICEBUGS, especially if its really Icy, running in deep snow is probably one of my favourites. Some of the locals called me mad, but from the UK, snow is still fun for me!