If I purchase a bow that is tillered for 3 under and I shoot split (vise versa) will I be able to shoot it accurately.  

Thanks

Absolutely!

A small adjustment of your nocking point is all you may need.

yup, every bow i have and have had were tillered split and have shot them all both split and 3 under without a problem. they are a little noisier 3 under.

Not much of a problem shooting an even tillerd bow split.  More trouble going the other way.

Mike