911 braking proublem?

This is my first 911 purchase,it"s got
65K and the car wants to go Right when
Iapply the breaks. With a firm grip on
the wheel you really don"t notice it
much.at 89,90mph don"t notice much its
just if you lightly hold the wheel at
lower speed it surley goes to the right.
The mechanic I use said he could not find
a proublem. Iunderstand that our roads
are sloped at little for rain run off
maybe alitte more down here in florida.
Could this be all it is? Any help would
be appreciated.

I can suggest that you check pad wear and disk thickness. if the disks are worn or the pads a little thin, you can get a pull to one side.