At a guess the 170s are non disk side (radial) front and the 175s disk side (non radial) front. The others are rar obviously, see if your rear hub has different sized flanges. If so, the bigger flange = shorter spoke.
Editing wasn't for me, just annoyed me really. There were some bits that could have been cut, like the lil wheelswap at 1:07 took ages as did the one at 2:14. Riding was ok though. For the main vid, keep the editing simple as possible.