TaylorMade Irons Tip Size

I want to put Project X shafts in my TaylorMade Rac TP Forged Irons (2006).  I believe they are .355 tip diameter but i cannot find information on whether they are parallel or taper.  Can you enlighten me?  Thank you!
Andrew, San Francisco, California, USA

Andrew,

They are taper.

Regards,

Jeff