It was able to keep up with the new proto slg at 17 bps. The only things i did not like were the non-magnetic lid and the programming. Programming can be a little confusing for some one who is not used to using the halo hoppers. The lid of the feeder is a pain in the butt. I am definately making or buy a speed feed for this hopper. It is harder to open than the viewloader force and i thought that one sucked. Other than that this hopper is a great buy.
I would definately take this over an eggy in looks and in performance. Other than my few dislikes this hopper is a steal no matter what. I mean it is a halo simple halo made for the paintballer on a budget.