How much of a power up is bsm to bm

[Madara Uzumaki Uchiha]

so far all it has shown to give is better sensing and the ability to harm obito,
the way I see it, is that naruto mixes his chakra with sage mode not the kyubi's which is why the kyubi avatar itself isnot any stronger, but if naruto condenses the kyubi into a cloak he should be considerably stronger since that form seems to affect all his base states, which would be boosted by sage mode
Same thing can be said for Sasuke, how much of a power up was curse seal mode for his susanoo??

 

[Kronnic]

Sage mode increases his physical strength, speed, stamina and his reflexes and durability dramatically increase.
Also, his ninjutsu and taijutsu become more powerful.
He can also harness the natural energy surrounding him and turning it into an extension of his body which increases the reach of his attacks not to mention he gains the ability to sense chakra around him.
Now add that with BM and everything now becomes x2.

 

[KidGamer65]

-All Ninjutsu and Taijutsu performed in BSM should get a BM and an SM power up.

-Naruto gets Frog Kata in BM, but obviously not with his chakra tails/hands as Frog Kata is using the Nature Energy that surrounds the body while in Sage Mode.

-He gets Sage Sensing.

-His body and his avatar should be more durable since his avatar has shown to be affected by the Senjutsu as seen by its eyes.

 

[xxSAGExx]

Increases physical ability
More powerful chakra means bigger jutsu with less chakra= better ninjutsu/ genjutsu
If SM increased the ninjutsu itself then a SM rasenshuriken> KCM rasenshuriken

SM is Senjustsu which gives Ninjutsus, Genjutsus and Taijutsus a serious power up

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. KM chakra is even stronger so it's still has a stronger power up, KM= Version 1 9 tails cloak mode. SM just further increases KM/BM power as it does for Naruto to SM Naruto.