I suspect that a significant percentage of the 'Hummer's Giant' Cephs being grown are typicals. Why?
1 - similar to non-mutation VFTs, there is no way to differentiate one Cephalotus clone from another with absolute certainty
2 - HG Cephs command a higher premium than typicals (sometimes amazingly so ...)
3 - there are many unscrupulous individuals
4 - many of the pics I see of HG Cephs do not have the characteristic wide 'midrib'. As stated in reason #1, there is no absolute way to distinguish one Ceph clone from another. However, close to 100% of the adult HG Cephs* which I have grown and pics of verified HG Cephs (that I've seen) grown by others have exhibited this trait (not necessarily all pitchers). BigBella's HG Ceph in this thread clearly demonstrates the wide midrib - as do most of the plants pictured in my growlist. Here's a pic of two of my 'outside' plants this spring exhibiting various degrees of the wide midrib (my apologies for the less-than-sanitized conditions):
I'm sharing my suspicion because I'd like to hear if other HG growers have a different viewpoint and also to warn potential purchasers to only procure HG Cephs from trusted / reputable suppliers** if they truly want the real deal ...
* - my original HG clone was purchased from Charles Brewer and I was with Charles when he purchased the clone from John Hummer at the ICPS Conference held in Atlanta (ABG).
** - the term 'trusted supplier' (or reputable) could probably merit it's own thread. Some growers are content to believe the assertions of semi-anonymous eBay sellers. Some are not ...