I'm going to second what Greg said about the right way feeling harder if you're used to doing it the wrong way.
Just thought I'd add that you need to trust your coach and his abilities if you want to get the most out of your training. It seems these days that everyone and their mother is selling themselves as an expert olympic lifting coach and it sounds as if you have your doubts. I would definitely ask around and do some research before taking someones advice to heart. Go to local meets or find some way to connect with "real" lifters in your area and get their opinion on your coaching options.