What discs you chose is going to be your preference. I'll 2nd what others have said so far - buy used discs, try friend's discs, and don't buy expensive/rare plastic.
Overall, try to fit five categories of drivers
1 - Very Overstable - utility shots
2 - Moderately Overstable - headwinds and big hyzers
3 - Stable Control - Workhorse driver, not a fast one, able to work any line
4 - Understable - Turns right from a flat throw and has very little/no fade
5 - Max D - Anything that gets you the most D when accuracy isn't a concern
You could get away with anything from 3-5 different driver molds to fill those roles.
For mids, get one that fades, one that flies straight, and one that turns right. For putters, get a driving putter that is stable, and one that will work turnover lines, and then find one mold you like for putting and buy 3-5 that you can practice with. For putting putters, don't buy premium plastic.
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