I would suggest shooting as many as you can borrow at the range, different people shoot different guns different.
I don't have a shadow, never could shoot CZ 75's worth crap, Put I have a Jericho 941 based on the CZ and it is the best shooting 9mm I have, better than HK P7 That is 600.oo gun new, all steel. The HK almost 5x that.
custom 1911 will out shoot it, but that has a red dot on it and a wack of money in it.
If you are interested in target shooting, single action trigger is better ,as a rule.
and for really good shooting, try a couple good revolvers , just for the hell of it.