I've been working on developing a strong half guard from bottom. I'm comfortable there and it allows me to setup sweeps much easier. Last night, my instructor had me pretty much working on balling myself up and getting my entire upper body up underneath my opponent from bottom half. I was having a serious problem with either A) getting passed or B) getting choked and this adjustment aleviated all of that and allowed me to sweep more efficiently. I'm still not great at it but I'm sure time will help. Is this what's considered deep half guard? I'm just wondering so I can research it a bit more and find some helpful tips. The 3 sweeps I know from there were much easier the further I got under my opponent and again, it's just comfortable for me to be there. Is one variation of half guard more efficient for one thing over another or are both full of sweeps and submissions?