SM, my friend took 2 deer to this one processor this year (out of the 6 he got), and both times he got back a ridiculously low amout of steaks - like 4 small packages of steaks each time, and that was with instructions to steak everything possible to steak. First time he complained, and they gave him a discount.. second time he didn't compliain - just told me that he won't go back. But these were from 90 and 95 lb-ish deer, so he definitely got shortchanged. You may have too -sounds like you did a little from standard ratios, IINM. So yeah the only way to be absolutely sure is to butcher it yourself - I don't know how common skimming, or just carelessness (failure to keep separated from other meat) is with processors, but apparently it's not UNcommon.
Oh yeah, and don't mess with perfection, +1.
