There is a guy named Theo who I think still lives in Mammoth, he is a great carver and racer and really nice person.
You are right about the F2 Speedster being stiff and more of a race board. While it is a great board and I own one myself it is definitely not the easiest to learn on but can be very fun later on. Donek can make you a very nice board and they are good prices too, I have a few of their boards and I am very happy with them. But of course you can't go wrong with other great boards like Coiler, Virus, Kessler, SG, Prior, Oxess, or whatever other modern board there is out there.
Also about the Donek videos, most of that you do not have to know if you just want to have fun on your board and it probably won't make you better but it is nice to know how your board works!