I have never been a huge fan of bands to assist pull ups. Bands are for pushing, not pulling, IMO.
However, I do recognize their ability to help, IF they don't become a crutch. I like this version of the bands.
Strength: Power Clean 3-3-3-3-3
WOD: Complete 4 rounds:
- 200m Row
- 20 Dips
- 20 Box Jumps
Rest at least 60 seconds or until rower is available