After searching the web for what felt like hours and coming up empty, I pose this question here. What is the time advantage of a block start versus a deck start? How much of a time advantage is gained by block start versus a deck start?
I find most modern pool decks are very difficult to make a dive off of, without slipping or otherwise "flopping" into the pool. I would say more like second minimum depending on the quality of dive you can get. Blocks everytime for me - assuming they are available.