Ok...here we go...
First, awesome link, I've not scoped that site before, thanks!
Second, what your describing is hybrid vigor, hetrosis.
It can be very misleading!
Just because a plant grows, or pups fast means very little, to show hybrid vigor you must first know the parentage!
To say a plant multiplies fast, is one thing, to say it multiplies fast, therefore it's a hybrid, is very much starting at an arbitrary point. You must be able to say FASTER than it parents! We are no where near being able to make that statement! In my eyes of course.
We are likely talking about an intergenetic hybrid too, that adds even more depth to the equation.
Third, I'm not the woody lily master, I'm only learning, the biggest thing I see that steered me away from an aloe hybrid and towards a gasteriaXaloe cross, is the lack of lateral teeth on the leaf, and what spears to be a terminal spine of sorts.
Aloes almost always have more than a single point on the tip of each leaf, gasteria on the other hand, very rarely have more than one. Haws can be anything...
I have a var. walmseys green, it certainly is very different from the pictured plant...I didn't even know about webleys aloe, it doesn't look like it to me either, from the pics.
Do you have any pics handy of yours
@pod?