Hi Mark; The little bit of logic matter I have left tells me that daily updates should outperform weekly updates, which in turn should outperform monthly updates.....so that makes sense to me.
In a sideways market, where the sells come interspersed with buys, the shorter time frames could be handled without problems.
In a strongly downtrending market, daily updates might still be possible if the SAFE were bumped up a bit (X percent added after each buy, depending on all the conditions) so that the next buy occurred at an attractively lower price, with some braking on the amount of the buy from the SAFE increase.
You gave me a glimmer into why some may prefer the monthly updates as well.....as you point out, sell side will probably happen at a higher price, once the rally is underway...(although I think I could also argue that weekly updates would just have made smaller sales on the way up, and probably ended up about the same place).
I would appreciate hearing from the advocates of the monthly updates, if there is an advantage I don't perceive.....thanks.