Feldberg is the equivalent of the the big-league ballplayer with an weird batting style.
When I coached little league, I always ended up with some kid waving the bat over his head like Julio Franco or spreading their feet too far apart like Jeff Bagwell, and I could not get them to change because they saw a big-leaguer do it on TV and who the (blank) was I anyway? So they would go 0 for the season and their Dad would yell at me for being a lousy coach.
So now I try to warn disc golfers that they have too many different discs in their bag and they should really learn how to throw the same disc on different lines instead of depending on the disc to do the work for them, and all I hear is "Dave Feldberg carries 40 discs and who the (blank) are you, anyway?"
I agree and disagree to a point. I strongly encourage players starting out (or players who have never had a minimal bag) to work hard to learn 2-3 discs, preferably neutral discs. But as you learn how plastic flies, I think it can improve your game to experiment with a bunch of different discs and a bunch of different throws.
I've been throwing discs for a little over a decade, and in college, my roommate and I spent countless hours playing disc golf for the sheer fun of it -- we didn't sign up competitively. We'd have a lot of one discs rounds where it was Aero vs. Aero or putter challenges or Speed Demons only, or whatever. Or we'd play rounds where we'd throw multiple discs and keep multiple scores going (separate backhand, forehand and upside-down scores for each of us on every hole, for instance) with the winner having the lowest cumulative score. Forced experimentation with different discs and different ways discs can fly improves your understanding of the plastic and of the game.
One of the most fun games we played was to get 3-6 people playing in a group and each bring the worst disc we owned. You would throw that one disc for the hole, and then after every hole, trade discs in rotation. It helped teach you how to throw every kind and condition of plastic imaginable.
Another game was to take all the discs we had in the car, drop them on the ground, and take turns "drafting" discs into our bag for the round. You could strategize to try to take all the putters or high speed drivers or whatever, or to take the other person's favorite discs, etc... made for some very interesting rounds with unfamiliar plastic.
When we'd do field work, we'd just have a stack of all our discs and take turns throwing whatever was on top, then collect them, restack them, and throw again. You got to try everything and see how subtle differences in discs and throws affected flight.
These days, with very little time for casual play (now I basically only have time for tournament rounds), I know I still benefit from those years goofing off and truly playing with what discs can do.
For tournaments, I have basic discs that are always in my bag -- the workhorse discs that do 90% of the work. But based on the course and the conditions, the other half my bag changes every round to fit the occasion. I also don't feel like my round is going to be ruined by losing any one disc -- there is always something else that can make the same shot. I've played several tournaments without a bag -- carrying just 4-6 discs in my hand
I'm not advocating that players use Feldberg to justify a huge bag of discs. I'm just saying that once you have enough experience throwing different discs, it doesn't hurt to expand beyond disc minimalism. Sure, a CE Firebird can fly a tight helix down an S-shaped alley in the woods, but if I bring a Z-Xtreme for that shot I can throw a lower, tighter line and get a bigger skip at the end, perhaps putting me closer to the pin than would be possible with the Firebird. Am I going to use the Z-Xtreme on other shots: probably not. Is it worth it for one hole: absolutely.
