In short maintaining testicular function during your cycle is better than being shut down for 10-12 weeks and risking testicular disfunction. You body lh production is inhibited during your cycle becuase of administering exogenous testosterone. Lh begins being produced quickly after the androgens have left the system but if the testies have been shut down for 10-12 weeks who knows how long it will take them to respond. If they have been functioning during the cycle IMO they will respond much faster