here is my take (and i agree with James' thoughts). the relative comparison is what matters (just like he said). did the shop do a dry and then wet compression test? the comparison of those two tests really is more useful than dry alone.
see, there are many variations on how to do a compression test (some folks pull all plugs first, some dont have the motor warm, some dont prop the TB butterfly to WOT, etc). that can all account for a large range of results, on the SAME motor (variations of the test can give the same motor different results).
a leakdown test is much more revealing. I would not sweat those numbers myself, based on the info given.
good luck with that and the gears.