Servo / BEC Question

[fastbaja5b]

Wanting to run my Savox 1267MG Servo in my SCRT10 with the SC Castle Motor and a MM Pro ESC, now have heard the MM Pro BEC is weak, and I know that the Sidewinder SC speedy has disappointed me greatly on that side, could I run a Y cable as such and draw Servo power through the balance tap of my 2s Lipo directly? Or would I still need a BEC? Servo is High Voltage compatable as shown here:

http://www.amainhobbies.com/product_...o-High-Voltage