I'm sure this has been asked before, but I couldn't find it on a search of the archive, so...
First of all, if your Endurance increases when you shift, you get more stress boxes, right? I'm going to assume this is so.
So, what do you do with that stress if you shift back and forth during the same battle? For instance, taking Georgia's stats (OW p.115), she has Endurance at Fair in human form (3 stress boxes) but increases it to Good (4 stress boxes) when she wolfs out. Suppose she takes a single 4-stress hit, then switches back to human form. Does that 4th box just stay floating out there, leaving her "human" stress boxes empty?
For a more extreme example, suppose she were able to push her Endurance all the way up to Superb, gaining an extra mild physical consequence. She takes a 6-stress hit and uses her 4-stress box and that consequence to soak it. The consequence still sticks with her in human form even though the consequence slot is technically unavailable, right?
The other stress tracks have the same issue in reverse -- for instance, if she took a 4-stress social hit, then wolfed out and knocked her Presence down to Fair.
I have a second question about beast change that'll probably be a little easier. Do you completely re-buy your skills for beast form, or do you need to keep the same skills on the page and just shuffle them? That is, can you drop a skill to Mediocre when you wolf out?