After a pilot of ours did a face plant trying to leap the barriers around our pad in a single stride, and a bird took off with an engine plug still installed (landed after the gauges hit the red, then tried again and ended up nearly balling it up), we adopted the philosophy of "slow is smooth, and smooth is fast", something I had heard before.. We had twins and were operating in Iraq, launching routinely in 6-7 minutes. Worked out well.
Oh and we left the tiedowns off then as well. Walkaround always, which included a peek into the intakes. Never had a problem.
Mike