Something that came out of that Bayesian approach was that it is best to run very little of the smaller curves and then finish off with larger curves. For upto a t50 something like 5-10% of curves at t20-50 and then finish up the t50 with curves at the t55 level would be better. I will find the thread next time I am on a PC rather than a tablet. The mainstream approach wastes a lot of time.

Edit:

http://mersenneforum.org/showthread.php?t=21420