Mind sharing some more details of your experience?
After discing down and reducing my molds, I noticed the following:
1. My throws no longer wildly deviated off-course, because I wasn't throwing discs that I could not throw effectively and reliably. This was most notable on windy days, when all of those speed-overstable discs I had "never seemed to work right."
If my throw was off, I knew what it was I did wrong.
2. I wasn't accidentally choosing the wrong disc because "I had so many molds to choose from." The fewer choices made for more reliable disc selection.
3. My grip improved because I was using fewer molds, and the repetition of discs with exact/similar rims gave me more confidence, too.
4. I was able to get discs to fly on lines that I couldn't before. Hell, I hadn't even thought of using some of those discs for those shots before....
5. I fully learned how wear affects stablilty. Although I first started by throwing heavier discs for more stability and lighter discs for more workability, I soon learned that those lighter discs were stable enough when new, and very workable when worn. I embraced the "DX in wear stages" approach, and I am very happy with the results.
If you look at my bag in my signature, blue means base plastic only, purple means both base plastic and premium, and red means premium plastic only. The Gazelle is represented by a single glow Champ disc (and is only used when I can't throw anything else right, or if the sun goes down), while the Ion only comes premium plastic. The Firebirds/Teebirds/Eagles/Rocs are cycled DX (with one Champ Eagle-X). The Z/X Comets get little use because of so much wind around here, but I want to learn from them, and my Panthers are my escape discs.
So now, really, my core bag is FB-TB-EX-Roc-Ion. As long as I stay on the fairway, 90-95% of my shots are with these five molds. Although I don't consider myself to be actively in "disc down/mold reduction" mode, I effectively am with my bag.
I can't say that there was a single negative thing about the experience, but the best part, most definitely, is parking a hole with a Roc when my buddy is in the bush with his Nuke SS.