my PG58 is pretty muddy too. that's why i'm reluctant about the SM58... i know those 2 are different but how much different is the question. i'm reading up on these 2 mic but what i've found is that no one has compare them side by side. and the fact stand that they look the same. they are produce by the same company. one is a slightly under in value... knowing how these company works i'm pretty dam sure they got some identical parts in there too. i'm scare that the SM58 will sound some what like the muddy PG58
lol i seriously don't wanna be like last time. i went out n got the XML990 and didn't like it the 1st time i tried it. too lazy to return

... now i'm comming back for more. but i don't wanna have another mic sitting in the closet all the time.
another thing is the room i use is my spare bedroom. it's not studio or anything like that. and i've found that it might be the reason why condenser will sound hollow because the room isn't design/treated. i think this time i'm gonna stick with a dynamic mic.
BTW. how do u double mic? i've never tried it before.