Quick question...how difficult is it to go from the 145 to 170/175? I start training in a few weeks and have been reviewing the study guide, and while I see a lot of similarities, I'm just wondering if anything in particular that is confusing or what I should be focusing the most on at this point. The cockpit seems like it's practically a replica of the 145 so I'm not freaking out or anything, just curious people's thoughts are.