I'm the opposite, I also have an old and a new version and I prefer the newer one. I like the settable clutch on the newer one and also like the button option, if it's small screws I find you have to push the old one too hard sometimes to get it to run.I have two Bosch goes, although I do prefer the older one without the push button, but both I rate highly.
Definitely find the mechanical clutch is better on the new one.I'm the opposite, I also have an old and a new version and I prefer the newer one. I like the settable clutch on the newer one and also like the button option, if it's small screws I find you have to push the old one too hard sometimes to get it to run.