Yes, hills and manual transmissions can be a heckuva combination.
Back in my High School Daze in Shreveport, Louisiana, I was driving a '68 Camaro convertable with a 4-speed Borg-Warner T-10 trans. If you're familiar with Shreveport, then you know there's quite a few hills within the city. And one of the worst is located right beside my alma mater, C.E.Byrd High School!
It was always a problem pulling up to that light, especially on cold mornings when I was having trouble keeping the motor running with only a manual choke on the Holley carb!
As it always happens, some dip would pull right up on my bumper. I'm giving the old heel-toe etc., for all I'm worth, but you just know the car's gonna roll back SOME!
Best response for me - Hurst 'Line-Lok' which was a device that kept pressure on the brake lines, with a button that you could mount on the Hurst Competition Plus shifter, so that, once the brakes were 'set', as long as you kept the button pressed the brakes were 'on.'
It's a pretty drastic response and probably unnecessary if your vehicle has the emergency brake located between the seats, as most cars seem to have now. When I was driving my VW sqbk., the emergency brake's only purpose was to keep the vehicle from rolling back at lights!
When you get a tad, er.., older, you will begin to really appreciate automatic transmissions!
Eric The(Geezer)Hun[>]:)]