Well, since we're back on that topic, I felt compelled to do a quick and dirty model (with all the buffs and stuff) it to see how the periodicity affects the potential DPS gains/losses due to cutoff time.


(click to see chart)

In theory, using Life Surge every 50 seconds comes out ahead of using Life Surge every 60 seconds for 2-minute dummy parses, 3-minute dummy parses, 4-minute dummy parses, out-of-TP-at-the-low-skillspeed-it'd-take-to-do-this parses, and in the first five minutes is ahead/neutral 2/3 of the time.

Conclusion: It's probably better than the general case would have us believe. You do have to be perfect, though.