Ok so some of this isn't really "tech" but it's practical stuff that beo players should probably do, and I haven't seen it posted anywhere in the subforum.
1. Meaty HP hurl vs reversals. HP hurl has so many (hit) invincible frames that you can dodge things like double's car super and beat supers with invincible startup at point blank. HP hurl is also +1 on block and you can convert off it from anywhere - easy enough in the corner, and using blitzer at midscreen. If you're still confused, set the dummy to do super as a reversal, oki them with wulf press then do HP hurl on their wakeup and watch it get beaten. Some supers like big band SSJ you have to time an arm super just after the HP hurl hits to properly punish, other supers might have some nuance to their punishes. Haven't tested fully.
note: you can actually try this with chairless c.hp but it's way riskier, I've had it work vs. dynamo and napalm pillar on wakeup.
2. MP hurl. Are you using this? You should be. It hits twice unlike HP hurl and the second hit is an overhead and is plus on hit, you guess it, it's a mixup tool. If you combo into this move then go low with c.lk straight after, the second hit of MP hurl will connect and you get an easy confirm. Also the second hit will beat some reversals. I tend to use this in the corner, as it tends to whiff at midscreen. You can mix it up with throw, I think doing hop overhead makes the second hit of MP hurl redundant as it hits them during blockstun. I might be wrong.
3. Faking crossups with j.hp on oki. Pretty simple, just jump over them and do j.hp, but then do MK wulf blitzer. This will hit them without crossing them up, which lets you OTG afterwards.
Other tidbits
-c.LK xx chair pickup throw is a really fast tick throw.
-I don't see many beowulf air resets but I've come up with one in the corner - (with chair) c.hp neutral jump j.mp j.lp -> jump back throw / j.lp burstbait. Seems like a decent air reset. The j.lp after j.mp is a frame link, I forget. Probably universal. Will test.
-Apparently beowulf has hop overhead safejumps that work on oki vs supers and reversals. My timing sucks (and so does my practice) but that's a thing.
-play against cerebella, throw the chair then spam s.hp until you grab titan knuckle then feel good about yourself - see below
edit: btw, can us beowulf players collaborate and make a list of OTG-less blitzer chains for all characters? plz?