Any of you guys do heater cores?

Ah the memories, While I worked at a Ford dealership ( 88 thru 92 ), A couple of us had a time competition on the Mustang heater core R&R. Labor guide paid 8 hours. We got it down to about 57 minutes. Of course we vented the Freon rather than reclaim, along with many other shortcuts. Imagine pulling the dash to you sitting in the passengers seat, drop the heater case on your feet, reach over the dash to pull the heater core and chunk it out the door. Reach behind your seat for the new core and install it, case up again, shove the dash right back in place. Knowing exactly what tools needed and where every screw is so you can work blind takes practice. Some fun there but... since I was the only tech to work for the used car dept... feckin Grand Am, SS Monte Carlo, Nissan Pulsar NX, Volvo station wagon, all that crap landed on me. If I had a nickel for every snicker and "You aint done yet?" Good luck to you