The original course atTorrey consisted of 1-3 North and the rest of South minus 11-13. So that routing would work, not changing par. The only advantage to that would be to introduce a driveable par 4, the 2cnd of the North. From everything Phil has said the styles will be very dissimilar. Will the greens have gone to poa annua in just 5 years? They will eventually, but one would suspect they would wish to hang on to the bent grass for as long as possible.