Schulze 18.97KW

I bought an Schulze 18.97KW last week on eBay, just to try an other brand. Right now I mostly use Quark ESC's, and I'm very happy with them. I'm curious of how the Schulze will perform. I will use it in my HPI E-Firestorm with a Hacker C40-S 14 (3000kv) on a 3S 5000mAh 20C LiPo.

Anyway... I read some older posts on over here about Schulze. Some said (Lutach, Serum) these Controllers like to burn up.
- Does somebody already know why these burnt? Too long wires, bad connections, overgearing?
I also read that Schulze's service isn't that good. But these posts are from 2007/2008.
- How is Schulze's service at this time?
The manual of the 18.97 sucks imo. They say something about an BEC.
- Do I need an UBEC for this ESC?

Oh... and if you guys got any tips for me on this ESC, I would like to hear it