When i saw them last year a week after Corey's death, the sound was very noticable to me. I could hear distinctively the missing solo's. Not an indictment on GWAR as i love them and they were great, but there's no doubt not having Corey play is fairly obvious to me.
I passed them up last week as it looks like a very similar show. I know it's GWAR and MW, but the theatrics were the same. And Oderus did a full on rant on Zombie and Slipknot at that show as well. Love me some GWAR but i gotta pick and choose my shows since there are numerous coming here this spring and summer i want to attend.
GWAR's always a great time though