GPP Hills

In regards to performing hill sprinting in the GPP phase, what would be a good warm up to perform prior to the workout?

Would one just do strides and drills up the hill say 30m and then perform the main workout or would flat ground be more conducive for the warm up activities stated above and then perform the main portion of the workout on the hill.

Cheers.

IIRC, there is a detailed description of the warmup in the GPP Essentials video. Do you have that?

Actually no, will have to look into getting it.