Sweetie Plain: A second turn advantage.

[ImperialSun]

supertitan P1 wins on sp in last 20 games: 50%
master P1 wins on sp in last 40 games: 42.5%

I don't really see the problem you mention about P1 being clearly disadvantaged.

Getting to the replay in particular, I'm curious why didn't you spawn a runner on turn 1. On SP unit count is a huge factor. Moving the medic instead wasn't useful because you couldn't heal with it anyway that turn. Usually if I am P1 I spawn a soldier on my attacking route and a runner in the middle. This lets me see if there is a runner threat to my sniper next turn and also gives me an extra unit I can send over to attack if not. My center spawn space mostly goes to runner production because they are mobile enough to join the attack quickly and also give me vision of my defensive side and runner threats to my sniper. The side spawn space goes mostly to soldiers which provide the majority of the attacking power and used in conjunction with my runners. Most of the time when I have a chance to trade 1 for 1 with a soldier or runner on the side I am attacking I will do it because it is easier for me to replenish my units as the attacker (from my two spawns) then it is for the defender (who has only one close spawn).