I'd just feed them and wait for the lump to go down and your snake to act hungry.

As far as feeding in/out of the blue; I just wait for them to shed and start thawing a rabbit (seems to take about 24 hours). I don't bother feeding while they're in the blue.
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We wouldn't have 6 and a half billion people if you had to be beautiful to get laid.
6.6 African House snakes
3.2 reticulated pythons
.1 corn snake
4.2 Florida Kings
1.2 speckled kings
1.2 ball pythons
0.0.1 Argentine boa