It's not head-heavy nor is it head-light. It's even balance and you can really feel the differences when playing with and switching between a NS8K, MP99 and AT700
Not head heavy. I have three MP99s. MP100 is more head heavy, but not REALLY head heavy. I have two of those. My friend's AT800Off is more head heavy, from memory, anyway (for some reason I don't like the AT800 that much).
I forgot but but it's either even balance or head-heavy balance. Since you have an MP99, what does it exactly say on the shaft about its balance?