Yes, it will help. The degree of help will depend on how much rock you are getting from the established tank. If 100% of the rock comes from an established tank, you may not actually experience a cycle. One key element is to ensure that the rock is transported in a way to minimize die off of bacteria and other life on the rock.
To be safe, you should MEASURE...MEASURE...MEASURE Ammonia, Nitrites and Nitrates.