My opinion on question 19 & 20
If I was going to use the U-Turn There are three factors that would make up my choice.
If I am not around any other teams, I would automatically pick Amani & MArcus. Knowing that they have an extra task this leg, I would hope that they would still be behind me.
If we were bunched together and I knew that I was ahead of people leaving the Detour, I would pick either Andy & Tommy or whoever I thought was going to be last completing the Detour that I was on (so for example if Andy & Tommy didn't do my side of the detour I wouldn't waste the U-Turn hoping they were behind me).
If I think I am near last and I see a team right behind me, thats going to be the team picked (no matter who it is)
Its all about giving your team the largest time advantage you can get. I would really try and pay attention at the Detour to see who is behind me.
On the Express Pass, assuming we are fairly well equalized at the start of the leg, and I know a U-Turn is ahead. I would express pass the Detour, to attempt to get to the U-Turn first, then I would pick Andy & Tommy (which are my favorite team of the season).