I would like to try something like this as well, but, and I hate to say this, I have gotten indicators that Andy's idea of 3 days on, 4 days off are pretty accurate for most circumstances. If it means anything, I do a full 3 days, 72 hours or a little longer, whereas I think many people do 3 days, 2 nights, or about 2 1/2 days.
One problem with long periods, as I'm sure you know, is that the body can build up too much copper. Another is simply that it is just too much mercury floating around in your system and considering that no chelator is perfect, it can be a little rough on your system.
I'm always looking for ways to speed things up without hurting myself. Unfortunately, right now upping dosage seems to be one of the few ways to do it.