I trade through velocity4x. I've been with them for two months. Moved from FXDD. They have good feedback on forexbastards com. They are a young broker and have some growing problems: service is really understaffed, they can open or close orders on your phone request 24 hour, but technical staff doesn't work at nights. Before last week I never experienced slippages and requotes with them but last three days I had a lot of them execution was rocket fast, basicaly the fastest I've seen, but again since three days ago it became unbearable slow. They said that they moved to a new hardware, so I hope it's temporary problems. I can live with crappy service, but my EA requires good execution. And if they don't solve the problem asap I'll move. Overall I wouldn't recomend them untill they solve technical problems. But hope it was just a bad week. And I will be able to recomend them already on Monday.

As for net capital. I think it doesn't tell anything. They don't have a dealing desk, so they don't hedge your trades with their money, as IBFX they pass your orders to a liquidity provider, I believe it's fxlq. And they are NFA regulated unlike many of the brokers. And I think that Refco case showed that having a huge net capital is not a garantee you won't loose money.