The difference is huge! A factory Hunter weighs 3.6oz more than a Limited and it's all in the nose. I shed 1.7oz from the slide and 1.1oz from the frame for a fighting weight of 43.4oz, just 0.8oz heavier than the Limited, but better balanced if you ask me
Now for the slide: the factory Hunter slide weighs 15.1oz (fully dressed), the Limited slide weighs 12.5oz and my new 6" slide weighs 13.4oz, but with more than a half ounce out of the rear and the added leverage of an inch and a quarter more barrel, I think it shoots noticibly flatter.