New Bow Arrow Question for Gurus

[Diamond Paul]

Got a new Hoyt Buffalo recurve, it shoots great with Heritage 150 30" long w/ 200 grain point.  I draw 28" and the bow is 45lbs.  My question is, could I shoot the Heritage 90 out of this bow and gain a little speed?  I am thinking that based on the 150's length and point weight, I could probably shoot the 90 at about 29" with 125grs. up front.  What say the arrow gurus?