Yes Bill with a big voice you would definitely have to go back some more. But I don't think you will regret the change in mics, I haven't!

Used a sm58 for years, and then changed to the 87a, after using one in a studio. This soudns a bit corny, but audience members have approached me at gigs saying its a change to be able to understand as well as hear the lyrics. They were talking in general and not just about me, but I got the message and I have stuck with the condensor ever since.

Dennis