ive committed in r2174 some speed enhancements, not including the
abovementioned change to deferring the on-load "copy" operation (which
is a more involved change), that affords a 20% speed improvement in
straight instance loads and a 25% speed improvement in instances loaded
via eager loaders...mostly due to the removal of an expensive
__getattribute__ call that was involved as well as an AttributeError
being thrown/caught for each instance created.

deferring the on-load "copy" operation which i mentioned earlier it
turns out would probably knock another 12% off the loading time, so its
not as dramatic as I thought originally.


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