I had the same concern, but Red Line took that into account. Mine is resistant to second to first regardless of temperature. More likely because it is an old box. I also doesn't seem to matter hot or cold. Redline helped slightly. Up is no problem!
Enjoy.
For the rear I thought long and hard about lube in the powerloc unit. Ended up with Moroso Climbing Gear
oil and GM anti slip additive (two tubes) from Jegs. Works perfectly.
Rick