tomkat-- new draw weight--arrows

[wahoohunter]

i made a post a while back on here about changing my draw weight but i didn't really have sufficient info for what i was asking...anyways, i'm relatively new to bow hunting and i have a bowtech tomkat...this past year, my first year hunting, i used a draw weight of 55 pounds...as the technician where i bought it recommended i might wanna do, i was hoping to pump up my draw weight to about 60 lbs for next year.... with the arrow specs. as follows, will i need new arrows with a jump of 5 lbs? also, my broadheads are 85 grains

Weight7.4 gr / in.
Spine.480"
O.D..293"
I.D..246"
Length28.5"

[pdq 5oh]

The first thing I see is the spine. .480 seems a bit on the weak side. You might get away with it using the 85 gr broadheads. I guess the total weight in the 350 gr range. FOC may be low for fixed bladebroadheads. Bottom line, I'd try the arrows you have and see how they fly and group.