Granby roll from side control in warm ups A

[Apperz]

Marcelo Garcia uses it A LOT... if that doesn't make it legit I'm not sure what does

a) be aware what's coming when you turn away.
b) get on those shoulders
c) look for the triangle if they panic or to kick their chest (away)

Variation and discussion here that you may find useful:

[Justin_Pynn]

I do a variation similar to the Marcelo Garcia one that Apperz posted. My only change is that I pummel my top arm through at the elbow of my partner, back of my hand facing my head, as I do the Granby. As I transition through the granby, I keep the hand at their elbow and turn it to push away the arm as my hips go through. That prevents the double under pass counter.