mine doesn't have a cap also. seems like a good price on the one with the cap. i wonder if it has less abilities and needs the cap to keep up with the rating?
There is a cap in the new CC BEC, it's just inside the shrinkwrap... I've put extra cap's on my servo and receiver power leads from the bec, propably overkill but I won't be having voltage drops or radio glitches. I used 220uF 10v caps, they are small and I've soldered them on just after the connectors.
If I could only draw what I see in my head, then afford to build it, and finaly get to play with it...