anyone know about these brushed boat esc's?

[SweetZ28]

I just purchased 2 of these and was wondering if anyone used them before and know if they go into reverse speed without any delay because that's what I am hoping they do.

THANKS
This ESC provides remote control of electric motors from an RC boat system. When connected to the motor is capable of supplying up to 50 Amps (forward) or 20A (backward) of continuous motor current. The integrated battery Eliminator Cirsuit (BEC) powers the Receiver from the engine battery to keep automatic shutdown of the engine power, receiver power than the battery is empty. It is small and powerful, waterproof, can be used for different types of boat

* Weight : ~82g
* 50 Amps (forward) or 20A (backward)
* Working Voltage : 5 - 10 cells, 6 - 12V, Nicd or Nimh
* BEC : 5V/1A
* Low Battery Cutoff : 5V
* Size : 42mm (L) x 48mm (W) x 13mm (H)

http://www.ebay.com/itm/2x-Marine-50A-Speed-Controller-ESC-water-proof-for-rc-motor-Racing-Boat-3m-tape/201376655685?_trksid=p4069.c100039.m2059&_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20140107094819%26meid%3Df8bb15898cc948789a002fc64f4b1aa2%26pid%3D100039%26rk%3D1%26rkt%3D4%26sd%3D201376655685

[Doby]

i've got about 7 of them in various scale boats...they work well.

[Doby]

no delay going into reverse.

[SweetZ28]

no delay going into reverse.

Cool thanks!
I will be putting 2 of these in my kyosho blizzard for a upgrade so I can run the hotter motors in it.