This is an excellent way to do it. And in fact, the proboards search function sucks so hard, this is how I search whatever I want to find on MiA. Using a Google search as described above turns up better results pretty much every time.
Another "Pro-Tip"... when you fail to enter your password correctly and ProBoards wants you to watch some advertisement in order to solve a captcha; just go back a page and try again. No captcha necessary.
Shameless plug for my airsoft chrono calculator, useful for converting Joules to FPS/MPS and determining what FPS difference there would be assuming no loss or gain to Joule creep.