Been testing setups with the new jab. I'll update my findings here. Can't record either - would really appreciate if someone can double check to make sure these work. I'm 99% sure this is all correct, anyway. Bear in mind these do not work against EVERYONE - you will have to adapt to each scenario based on character, percentage and jab hitbox.
Main thing to note is jab has three main results now. If you're far away, they'll be knocked up a bit - I'll refer this to spaced jab. If you're closer, they'll get knocked further away - I'll refer to this as standard jab. If you're even closer, they get knocked behind you. This jab is totally useless so I'll never use it for comboing.
(NEW) STANDARD COMBOS
Most old combos still work at low % - jab reverse utilt, grab etc. are all generally fine still.
• Spaced jab can go into footstool, nair reset then Up Smash against most of the cast. It doesn't seem to work against fast fallers. Against some characters like Luigi, you're better off doing a Dair after the footstool rather than a Nair. Dair still goes into Up Smash.
• Spaced jab into Fair fast fall works, forcing a tech they probably won't react to.You can even rejab to force an "infinite" but they will eventually tech most likely. The rejab is extremely hard though as you have to land far enough way to then do a spaced jab. This generally works better at higher %. I wanna say it would catch airdodges but idk.
• After footstool shenanigans stop working from spaced jab (so around 100% on Rosa, for example), you can do RAR SH Bair instead. 20% later, you can do Uair. If they airdodge, you have no landing lag on either move so it should be fine
• Near the ledge, standard jab into footstool seems to work against a lot of characters but they can airdodge too. If they airdodge, land and try to Fair gimp them. If they don't, you can shine to stage spike them.
• Standard jab into (dash) grab is still true against most of the cast but some of them can spot dodge at different percentages. Mixup your grabs with SH Dairs to catch spotdodges and also try boost pivot grabs to make your grabs unpunishable.
I'm gonna check more character specific stuff later as I have people coming over but it's fairly promising for now. Spaced jab is generally fantastic but you have to read options very well. Standard jab is quite poor and tricky to follow up on for sure.