Scissor kick

[Josefish]

I have always heard that I should avoid the scissor kick, that it's not good for stability, balance and had to work in order to avoid it completely.
Now accordinding to Shinji ( comments on facebook) doing it is great , as it stabilize your body and so on...And he is working on it
Now I am really confused about it..
Any advice ???

Thanks

Confused Josefish