fabulous find! thank you for posting, crunch.
i am a self taught fly caster but have been throwing for over 30 years. my form is well less than perfect and on some days it's still downright lousy.
fly casting while sitting in a kayak certainly doesn't help either. about 50% of all casts i make in freshwater are with a fly rod so i've become pretty efficient at it. saltwater is different story however. larger flies, heavier line, heavier rods and reels, and wind seem to have made the transition to saltwater a bit more challenging than i expected. standing in a boat or on shore, not a problem. so why not stand in the yak? Many fly yakkers do stand, but my current center of gravity doesn't allow me to do so.
nonetheless, like in most things, practice makes better. (notice i didn't say perfect). on non-fishing days, i try to get out in the yard and throw the fly 50 to 100 times. sometimes sitting, sometimes standing. practicing with the wind in my face and wind at my back. side arm, overhand, backhand. i practice short casts, distance casts, and specific target casting. it's not only helpful, it's almost like the next best thing to being there. drives the birds crazy as well.
fly fishing can be very rewarding and is actually a lot of fun. it's not hard to learn either. i'm not a very good fly instructor, but there are some other excellent fly anglers who frequent these forums that would probably offer up some great advice to some fly newbies looking to get into the sport.