I've got a question about the center pocket on the Strikehard rig. Is it easy to use the center pouch as a dump pouch? Would you consider removing the velcro closure over the entrance or would that make the rig floppy from the weight of the mags in the pouches?

You aren't going to be able to use a map pouch in that location like a dump pouch wihtout the magazines on the front face flopping around. Also, the mags dumped in there are going to fall out as soon as you move quickly or bend over.
the velcro is pretty tight, your gonna fart around with it if you want to use it stuff a mag or two in there.
i tried it anyway, you can fit one mag just fine, 2 mags and it will only close a little bit and most likely pop out when moving around.
if you took the velcro off, i think it would be kinda open like the pic, but i did not walk around to try this out.