Stephen Kesting has a two DVD Sets called "How to Defeat a Bigger Stronger Opponent' as well as many videos online from and in supplementation to them. These are probably the best resources out there for learning the adjustments, techniques, and details for optimally handling weight differences, here are some examples of his content:
https://www.youtube.com/watch?v=NV692quvkYc
https://www.youtube.com/watch?v=q2OAJF__P2w
https://www.youtube.com/watch?v=8mCvxNQk6oc
Alot of them include details from a female blackbelt who deals with larger guys alot. The website for them is http://www.grapplearts.com/biggerstronger and http://www.grapplearts.com/Blog/bigg...nger-series-2/, but theres alot of content on youtube.
https://www.youtube.com/watch?v=NV692quvkYc
https://www.youtube.com/watch?v=q2OAJF__P2w
https://www.youtube.com/watch?v=8mCvxNQk6oc
Alot of them include details from a female blackbelt who deals with larger guys alot. The website for them is http://www.grapplearts.com/biggerstronger and http://www.grapplearts.com/Blog/bigg...nger-series-2/, but theres alot of content on youtube.