Of course I saw those videos. Lol. I'm sure they sound great. Will it match the response curve they advertise without applying an EQ? Idk. I do know a celestion spec cab paired with a powerful amp yields Great results. The reasons I recommend a spec cab is I know it sounds great and there's obviously a reason celestion released a design specific for this speaker. I would assume they had done extensive testing when developing the f12. Honestly....I could care less what you put your speakers in. Hell buy a couple $10 old pioneer speakers off craigslist and give that a go if you like.
Please share your results with us
I however won't recommend to others to put these in random cabs without personally knowing the results. I've read too many posts saying these speakers can be finicky with some cabs. I will eventually build two more and run two "mini stacks" in stereo.
Edit: For the record those videos were released YEARS after the spec build recommendation was released and months after I built my cabs.