ltcgearcalc.com has been updated with (knock on wood) more accurate method to produce daily estimates.
Last week's estimates compared to the actual payouts revealed what I had expected:
LTC was fine at around +0.003% over or thereabouts.
VTC was good too at around +0.009% over.
Now, DRK & FTC went as follow:
DRK was about +8% over!
FTC was even worse at +12%!
This was expected due to the crappy original method I was using and the coins w/ wide swings in daily diff. After quickly running through the new approach after just a day's data, FTC looks much better at just a 1% difference... DRK is still going to be problematic, but it looks to be underestimating by like 12% or so. I might have to revisit that one and come up with something unique for it... but I think it's at least better to be under than over.