[Rathar]

Statistically speaking, if the chance to have a site be a common site is X(say 50% or whatever) then the chance is still X no matter how many possible sites there are to choose from. The same holds true for uncommon/rare site. One can achieve a higher or lower average gem production value (phew, say that 15 times fast.. while not sober..) in this case only if the mean production of the sites has increased or decreased. I.E. if the average common used to make you 1.3 gems and now it makes you 1.5 gems you have a gain.

All I am saying there is that having more sites to choose from doesn't really matter, it's the percentage of occurence that matters most.

Now as to blood production..

If the rate of blood slave capture remains the same while the average rate of return from gem producing sites changes then blood becomes either greater or lesser in a way that should be obvious.

I am not taking site frequency into consideration as supposedly it is tied to blood as well so it is thus a constant.