really it will not be 100% as the mane 5 more through the pinkie it may be because in the episode "macks of chronic" you can see that so pinkie is what it is today due to the Rainbow Dash sonic Rainbow it did a wave of Rainbow Pinkie Pie in the Rainbow did that with Pinkie .... I do not doubt the Rainbow have the abilities of the pinkie because to it have passed extreme joy and randomness to it with Rainbows powers she probably has it so that it controls more than Pinkie more ... is serious look at the episode chronic brands in flashback Pinkie Pie you can see that the wave of Sonic Rainbow, Rainbow Dash reaches Pinkie reaches knocks her flat and her hair is wrapped ..... think pinkie would not be what it is if it were not for Rainbow Dash .... (Rainbow Dash can be secretly worse than pinkie)