Umm... I don't think you understood me. So I'll give you examples:
Let's say you ground an opponent using a d.D or a Super Argentina Backbreaker. Once they are on the ground, if you use your Neomax, will it land?
Well, you said "Max Cancel", which is only possible when canceling from a DM (or EXDM) into a Neomax. But I see what you were getting at, now.
The running tackle does seem to catch after the launch from Gattling attack, though, if I'm not mistaken.
One small buff I'd like to see for Clark is for his jCD to counter-wire (a la Daimon). So you could do something like jCD (counter) -> air throw.
Like I said, not a major buff. But it's easy to implement and would be cool.
Really wish they'd make a verstion of SAB DM have a running start, for that very purpose, though. But maybe that'd detract from the Neomax...
I used to love Air Counterhit -> Hop and Air Throw in XII. Was so fun to do

Could you use C / EX Gattling to land the uppercut -> DLD derived airthrow already, off a counterhit?