Does 140 pro + 140 pro without pre-amplified output board = 210 pro

[Rexie]

So, with the 140 + 140 = 210 question of upgradability solved the next question is was it worth it? 

I have a 140 Pro CI and have an opportunity to get a 130 Pro CI locally (both seller and buyer live close by in Saudi Arabia, which is an odd coincidence).

Did the move to 210 lift veils, provide new unheard levels of bass dynamism, and/or any other audiophile cliches we can think of?  I'm driving Triangle Signature Alphas and very happy with the status quo and wondering whether to make the move.

Also, my speakers are biwire-able. Do we get to use all of the binding posts on both amps?

Thanks in advance, Rexie
(First post, after months of lurking so be gentle)