Racket for Men's Doubles

Hey guys,

I need a new racket as I'm going to need a back up or potentially a new main racket for a provincial tournament coming up.

Some info about me as a player:

1. Currently using Head Nano 500 (been using it for 2 years now)
2. My partner and I tend to rotate frequently so I play smashes and drops from back court but also need good net play and drives
3. 17 years old, 5''8
4. I tend to swing more but my coach is teaching me to use more wrist
5. I can impart a lot on a clear but my smash isn't as strong as it can be.
6. I play minimum twice a week upwards to 4 for at least two hours. Two of the days are coaching days

On to the racket:

1. My current racket is strung at 22lbs and I find it's good to play tight net shots but I can't generate a lot of power on a smash

I was looking at the Li Ning n90ii and the n50ii simply because my club gets discounts on Li Ning :P. However, after further research, there's a lot of mx80 and vt80 lovers out there.

My budget would be nothing more than $250 CAD because if I were to get either n90ii or n50ii from my club, it would only come out to be ~$230 including everything.

Thanks in advance guys

EDIT: I used my friend's voltric 9 today and I feel my backhand clears are better and my smashes are more accurate and powerful. So a stiff racket is fine, at least I think so :P