One of the basic underpinnings of the bunting strategy is the manager's mental calculus regarding the likelihood of of the subsequent batters driving in the run from his current base.
I have a theory. I think most managers over-estimate the relative likelihood of a single compared to an extra-base hit and thus over-value having a runner on 2B instead of 1B (and thus under-estimate the cost associated with giving up an out to increase the likelihood of him getting him there)
So I'm curious what RedsZone's instincts are on this front. Without looking, what do you think the NL average is in terms of percentage of base hits that go for extra bases.
(note: I looked at all NL players with 50+ RBI as a rough cut for guys expected to be "run producers" and the proportion of XBH is higher, as you'd expect, but not exceptionally so)