Well, since our personal scopes at my program only get 4x, 10x, and 40x, I'm a 4x guy. I can do the bulk of my work at that power, and then go higher for things that catch my eye. Small biopsies will get perused at 10x, but 40x is reserved for hi-po nuclear detail viewing. I'd like a 2x and a 20x, but eh, I get by for now.
It's too bad you guys don't have 2 or 20. I like 2 because it's the biggest field you can have. I guess I only use 40 if I'm really having trouble with mitoses. I agree, 10 is good for bx.
Don't you have to count mitoses on 400x in order to accurately quantify them (i.e. 10 per hpf, etc, etc)?