I am totally convinced that you cannot just stop flying while doing the ATPL groundschool. Imagine how rusty you would be flying after a year or two studying!
I am doing the ATPL groundschool and have the objective of flying at least once a month, all cross country if possible, as I want to build these hours for the IR/ME. This also keeps me motivated while getting ELRs, DALRs, great circles and rhumb lines into my head!!!
By doing this you are only taking a day a month away from studying, work, the pub and of course the family - and its all good experience.