Since i've been instructing at FIT I haven't meet any CFII that is afraid of flying in IMC weather. Every CFII there is "looking" for actual time. Also, every CFI that I have came across with at FIT knows there stuff. No matter what flight school you go to, you will come across a couple of students that drag along some how. How they do this, I do not know.
Yes FIT has new airplanes with some older ones. In my opionin, the older ones fly just like the new ones. The yoke is shaped a little differently. That shouldn't matter though.