Please assess your thread carefully for errors in grammar in that doing so shall allow those who read to more easily understand you, otherwise I might have to eat you xP(joke...or is it?).
Now then, rasenshuriken has never been used against susano'o, and I shall side with other fans upon this relative point: are you truly choosing to compare Madara's susano'o to that of others?[It actually matters, believe it or not]
Upon the point of the bijuu bomb, rasengan was created in the same ideal form as the bijuu bomb, the same basic underlying construction. Therefore, it would be capable of penetrating susano'o.