Anon Hands in a backward roll on beam

[Anonymous (6a3c)]

In a backwards shoulder roll on beam will there be a deduction if I grab under the beam, and not just the sides?
Also, do I need to stand up before I do it for it to count as a skill? Exp. Instead I swing one leg over in my mount, while sitting on the beam, stretch, then go straight into my back shoulder roll.

 

[Anonymous (bcb2)]

When I was in gold, I competed a shoulder roll right after my mount (I never stood up) and grabbed under the beam… I don’t think that I got any deductions for either of those skills and I never had an issue with getting skill credit!