Just wanted to get people's opinions on using the skirmish fixes for IG-88 and Vader for campaigns.

My friends and I often feel they too pricey to bring in as open group as they are but concerned they might upset the balance if we use them. Any suggestions either way be appreciated!

The general advice is: if you get the figure as a Reserved or Initial group (basically, if you get it without having to pay the threat cost), then use the original version. The mission should be balanced around the original version - if it weren't, there would be special mission rules to bring it into balance.

But if you do pay the threat cost (bringing it as an open group, for example), then use the updated version. That's what I do, anyway!