Does anyone else even have a pro circuit pipe on here? I do, so let me give a first hand testimonial.
The pro circuit pipe is a left bend pipe. That's a generic picture for something else. The pro circuit platinum is a good mid pipe. On par with a Toomey head pipe. The claim to fame for procircuit (which won't apply to yours because of the different silencer) is that instead of a rubber tube to connect the headpipe to the silencer, they use a trick triple walled joint without a real seal. Works really well too without a clamp or anything
The real thing is, what are your plans for later? If you're trying to build a trail bike, the pro circuit platinum is an excellent choice. You don't give up the bottom like a right bend pipe does.
If you're going to go with a BBK later on trying for top end power, you'll want to pass on the platinum for a pipe that will allow you to expand into it later.