The training was grittier, with the addition of fighting being added to training sessions almost immediately. You got your *** handed to you in the first couple weeks, and the dojo culture was one which inspired you to want to earn your place on the mat by sucking it up, and hopefully giving as good as you got in sparring sessions.
Sparring was less point-oriented, and more skill based. If a technique in class worked on a low kick followed by a high over-the-top shot with a lead hand cancel, then you were instructed to develop that as a fighting combo. Of course, that only held for a few minutes, then it was a free for all.
Issues in other threads about functionality were moot back then -- you walked out of class with some busted fingers and missing teeth, having applied what you learned to an attacker who was doing the same thing to you. If some poor sap came at you after class, you had some new stuff to throw at him, and some old stuff you refined in the mean time.
There were a lot more injuries, a lot fewer kids, and fewer lawsuits. It was a physical culture, with the innate understanding that participation = pain. Time passed, and the focus became making money in studio settings. Hence, the blue-collar thugs moved out of kenpo, and into other arts.
Nowadays, the same aggro steroid boys that used to show up for sparring night, now show up at the MMA studios, because they can get their grit on in a culture of physicality and intensity. That same nuthouse used to be the kenpo sessions.
Techniques? I see studios now that don't even touch their uke's while drilling. WTF? I still emphasize moving your attacker with each hit. It teaches the defender how to really throw some heat, and the attacking partner how not to have their head messed with by taking a hard hit... or several dozen.
We lost a real kenpo senior yesterday... Uncle Tino Tuiolesega. No BS brawls this guy used to get into. So many people got so scared of him, that they wouldn't tell the stories of old that involved him, lest he or his boyz show up on your step. He's moved on to greener pastures now, and people are still afraid to post old stories about him. Great example of how kenpo used to be... scary and hard.
Now we have nancy-boys doing air-kenpo and wearing loads of rank. Ah, well... whaddya gonna do?
For me, I tend to isolate my training to sessions with people of like mind. I typically either have to find gorillas to train with, or old dawgs who also hearken back to the days of yore, and have been doing it since well before Mr. Parker passed. I started on my birthday in 1971 as a kid; my next b-day will mark 40 years of being absorbed and obsessed with this hobby. Not as glamorous as being a surf bum, but then again I never could really get the hang of standing on a board, so why not kenpo?