Consistency is a laudable objective, but it's NOT the primary one. That objective is that You and each member of your crew is READY for play to commence. In the vast majority of instances, the above advice is worth following, works well and establishing a consistent pattern helps generate a steady pace that everyone can adapt to.
However, it's the exceptions to normal that usually cause the more serious headaches, and you can't automatically follow patterns past exceptions without experiencing trouble. Keep an eye out for the exceptions, the problems, the unusual interruptions and simply make sure the ENTIRE crew is actually set, before your RFP whistle.