problems recording metalcore vocals

I am pretty new to this forum and recording but:

But as my band is recording our demo now (in an old barn actually) we got some pretty cool tones out of puttin a sm57 in the hand of the screamer and using a condenser a couple of feet further away at the same time!
I feel the condenser just fills what the SM57 (or 58 for that matter) cant seem to get! well i dont know.. test it!
 
I thought about recording my vox that way, handheld + condenser far away but I decided against because I figured the difference in distance would mean a tiny delay between mics?
 
It works pretty good just keep the condenser a few feet away and dont scream directly into it and mix the two mics to you liking, ill post a sample of my raw mix at a new thread soon.. I need some mastering and mixing help you see