PM Bullet-2 questions

[Strangelove]

I recently changed my setup and I'm now powering my B2 with a Sen-900. After doing some searching it seems that it's definately underpowered. It isn't skimming well at all.

My first question: Is there an adequate submersible pump that you could recommend as I'm unable to drill holes in my sump right now.

2) The skimmers I see on PM's web site show a different injector assembly. The new one is shorter and clear instead of the taller, dark grey one I have now. Is the new one better enough that I should look into getting one?

Thanks for your time,

Gene