Was away for a couple of days and just catching up...
In the interest of time, I agree it should be fine to go with a scheme where the committee must explicitly adjust the upper and lower limits as the value of BTS changes. Although I think we do need to realize that it WILL matter to some business builders whether the min fee is .003 or .01 (more than 3X higher). In light of that, let's provide a level of certainty. To do so, we should simply debate and ultimately target upper and lower limits in terms of a stable currency (USD probably makes the most sense here), and then if BTS changes in value such that the limits (in terms of the stable currency) deviate from the targets by some percentage, say 10-20%, then the committee acts to update the BTS limits to reflect the stable target limits. This may seem trivial to some, but it's not.