Juubi can collect natural energy instead of its Bijuu Chakra. So, I am not sure where you come up with the belief that Juubi will be any stronger with Kurama and Gyuki Chakra, though you always come up with fanfication.
Damn I was sleepy so I didn't comprehend well what you wrote. Ok, now I get it clearly. However nowhere it was stated that Juubi collect natural energy to make up for lacking Bijuu chakra amount. In my view Juubi only collected natural energy to advance towards it's final form.
Still you can have Final form Juubi fresh from get go or You can have Final Form Juubi exhausted (overused it's chakra=lacking some chakra), guess which version is stronger ?
This.
The full Bijuu would only mean it's capacity is possibly increased, not that it would make it more potent.
Most likely you are right... but again the bigger capacity also could make attack more potent when you focus all this bigger amount of power on same space as before(attack would be more focused). Even if it doesn't work like that then at least Juubi with Gyuuki and Kurama could have bigger AOE indoubtly.
Lol, read again buddy. He said that Kurama nor Gyuki make the Juubi's attacks any stronger. He never mentioned Kurama or Gyuki's attacks.
Ok, ok I get it now. You can make fun of me but I was sleepy and too tired to comprehend properly what I read.
Madara's CT was pretty strong too
of course. I would like to see meteorite size from big gravity core created by Madara instead of split into many smaller gravity cores to create smaller meteorite size.
He said Juubi possessed more power as in Chakra.
Exactly which results in bigger AOE and most likely being more potent(if bigger attack focused on same distance as smaller attack can make it more dense and thick resulting in better potency of atttack as well.).