quote:but often does not roll easily after I have been driving for a while.
Tim,
It is not uncommon for the car to require slightly more effort to roll after driving.
You can put shims between the master cyl and the booster and go for a drive. Use fork type wheel alignment shims or cut a small section from a flat washer (probably several washers) so that it just slips over the booster stud. Tighten the nuts (or bolts) and go for a drive. Be aware that the brake pedal will travel farther than you are used to.
John