Considering using 4AD EC for the first time. Assuming diet and training are on suggested targets, what could be considered a typical muscle gain in a two week cycle?

MAG-10 is a better choice if you’re only going to do a 2 week cycle. Check out Strength Training, Bodybuilding & Online Supplement Store - T NATION for Tim’s comments on the differences between these products.

5-10 lb LBM, with the more typical values
being 5-7. This is based more on Androsol
results than 4-AD-EC, since Androsol has
been used much more.