I haven't used Becker FastPass, but passing everything within a couple months is feasible. I'll have 3 within about 2-3 months, and could've had the 4th except for that I thought it “couldn't” be done, so didn't try. And…I've been working 35-40 hrs/wk while doing it. I seriously looked at the material I had to study, the time it would take, etc., and figure out how to get my last 3 sections into this last window, but at the time, I'd never seen someone do that many in one window, so I thought I was being ridiculous and spread things back out. Ended up just sitting around for enough time to have done REG. Oh well, this way I have a week of vacation which is also study-free…which is a good thing…just not quite what I'd been planning on! 😛
So, it is quite feasible to pass them all in that length of time if you're using a course which is quick enough. Something with 300 hours of lectures per exam is going to be hard to fit into one testing window. 😉 But something with shorter lectures or no lectures makes it much more feasible! I use Wiley books, so no lectures. Probably about 20-40 hours of reading the book, depending on the exam, and then however many hours of MCQs and SIMs it takes (I use the test bank for my MCQs and SIMs, but the book's problems are good too), so that sort of study-regiment can be fit in around life in a short length of time. Sounds like FastPass also focuses on not spending forever in front of the TV watching lectures! So like I said, anything with short lectures or no lectures makes it MUCH easier to pass these quickly, and makes it quite possible to pass them all in a testing window. We have a couple people on here who are doing that this test window, and one in particular that I know about (dutkas) just got back his 3rd passing score and is about ready to take his last exam, having just taken his first one start of last month! I don't know offhand what curriculum he is using.