Hi there. Concord Law School grad here, passed FYLSX 1st time self-tutored with various Reseller materials purchased on Ebay, and passed CBX 1st time with BarBri supplemented by various Reseller materials purchased on Ebay.
Facts: In Googling generically for "California bar review course scam" I got not one but *two* hits (this being one of them) for CBR, and not a single hit for *any* other CBX Review Course or tutor; my other hit was a 2010 blog at http://all4jds.com/forums/aft/13248
whose participants echoed the facts and sentiments provided here ... except that the 2010 comments indicate he was leading potential customers to believe "he" had a 90% pass rate on the (CA?) Bar whereas the comments here in 2016-2017 indicate he was leading potential customers to believe "his" pass rate was 80%. Despite those impressions as to "his" pass rates (or at least his currently claimed one), his website's discourse about Pass Rates, titled "The Truth About Pass Rates", which runs on for over 2,100 words(!), artfully dodges the factual question that its title raises!https://www.celebrationbarreview.com/th ... ass-rates/
So, them's the Facts ... now on to the Rules!
So, now think to yourself, "What are the Rules-of-logic that I would apply to *any* Fact pattern involving an expensive investment for which:
 A well-accepted mainstream stylistic approach exists (here, IRAC-based writing style) and is available for purchase from a wide variety of mainstream Sellers, and where all well-reputed mainstream Sellers emphasize that the to be successful, the Buyer must supplement his monetary investment on their product with hundreds of diligent hours expended performing arduous, long, boring, repetitive, mind-numbing tasks (here, memorizing Rules, practicing Essays and MCQ's, etc.); and,
 One particular Seller promotes an alternative proprietary approach (here, Mumey's "anti-IRAC" approach) whose entire basis lies in his opinion that the mainstream approach is inherently flawed; this Seller somehow manages to give customer's the impression that his approach achieves a remarkably high success rate (here, 80%? 90%? Which jurisdiction? Which Nth attempt? ...), yet his public "advertisement" uses over 2,000 words to assiduously avoid providing any factual information while denigrating the mainstream competitors as "big box" and he relies solely on "Testimonials" to back up his success claims; he emphasizes "mental strategies" like positive thinking (Dale Carnegie), photo-reading (Paul Scheele), etc., and whose "draw them in Free Seminar" is titled (I kid you not!), "How to Make the NEXT Bar Exam Your LAST Bar Exam: The 4 Powerful Steps Guaranteed to Pass the Bar!"
OK, now, time for Analysis!
Apply the Facts above to the Rules above ... or, if you prefer, apply the Rules above to the Facts above (it works either way, i.e., the Commutative Law applies to Bar Exam Essay-writing, not just to Mathematics!) ... and then substitute "Proprietary Alternative Medicine Treatment" for "well-accepted mainstream medical treatment" (or, if you want, "Proprietary Alternative Investment Strategy" for "well-accepted mainstream investment strategy"; etc.).
Finally, using your Left Logical Brain (as opposed to your Right Fantasy Brain), draw your Conclusion!