
Originally Posted by
VJ Bella
In the first vid even if you were to arm drag him across and then use the vicegrip this would be a very difficult submissions to pull off because there is nothing cutting off his right corotid.
I arm drag to d'arces or arm in guillotine with the arm trapped, or if they swim back for the underhook regular arm in, regularly so there are chokes there, but yeah the vice grip seems to be weak there without having your core to apply pressure to the head.

Originally Posted by
Andrew Maxwell
Any time you're in any kind of half guard you're arm should never let that underhook get taken like that,
off topic, but too be fair "Never" isn't exactly right. I go overhook lockdown to pyramid/meathook/flying kung fu all the time. Either if they force the underhook or if I can't make anything else work I'll give up the underhook.