I'm curious what people think about the following questions relating to deck size and composition. I'm not going to respond at any point in the thread because I'm more interested in hearing what people have to think about the issue than any other consideration.

1. Is 60 cards an absolute restriction on competitive decks or is there possibly a subset of decks that might be stronger via added flexibility vs higher predictability at 61?

2. Does an appropriately high land base for the deck, say 27 or 28 lands, make any difference in the calculation above?

3. Does a very high draw rate which produces fast card advantage as part of it's effect make any difference in the calculation above?

The questions arise from the very tough choices that people often make when they are trying to pare a deck down to 60 cards exactly or to fit an additional solution or capability into a 60 card deck that is very tightly wound already.

The last question is: does anybody know what the actual difference in predictability is between having a 60 card deck and a 61 card deck?