How do the CD, DD and PD compare?
DD is a stable 12-speed disc. Probably not for you yet, if PD is very stable for you too? If I remember you from the Finnish DG forum, you are a beginner, right? (I am "SanMiguel" at that forum)
CD and PD compliment each other well, I think. CD is like a easier PD, a touch less stable and longer for that power level where PD fades off too early. Although if you get a light (160s?) P-PD and beat it some, it will probably overlap with the CD.
Some people pair off the PD with a TD. PD&TD or PD&CD make sense but not all 3 of them.
You should check out Jussi's bag.
Jussi has good discs but he is in a totally different power level.
Here's my bag, mostly DM:
P-P2 (putting, throwing)
R-pro MD2 (the first run P-line MD2 = very soft grippy and understable especially when beaten = magic straight disc with zero fade.)
Glow MD3 (very close to flat C-MD2 that I just lost and will probably replace before spring) stable/straight also for forehands
C-FD staight/stable, good glide
the meat of the bag (most used)
S-CD beaten, super straight with minimal fade. 330ft laser beams.
P-PD still beating it to super straight with minimal fade, i used to have one that was just as amazing as the above beat CD.
FR S-PD moderately beat, still stable with some fade
JH (i.e. Jesse Heinonen) S-PD least beat, stable PD
in the bag although not so often used:
P-PD2 beat, long stable
FR S-DD very stable, long, lacks glide, most stable fast disc in the bag
ES-DD2 turns but comes back, max distance
S-FD having some release issues, flips too much, but its also beat in. I might get a fresh one next spring and see what's what
D-P3 dont really know what I use this for, will probably drop it. The P3 does have a comfortably shallow rim, though. P2s still do most anything I need a putter to do.
other than DM:
AJ TB - like a more stable brother for the FD. I'm trying to beat this one in, now its mostly for range control spike hyzers. I want to get a straight Teebird everyone is talking about, but this is too stable. Questionable place in bag.
FAF 12x FB - utility super overstable. Tight turns, spike hyzers, s-curves where you want the fade no matter how steep of anhyzer you happen to put it on
other DM I do not use:
TD has no use for me, every TD I have tried has brought nothing over my CD/PD game.
TD2s are very understable and glidey (faster S-FD in my opinion), fun to mess with but not when trying to score well.
GM I never even tried, or can imagine needing.
I used to bag C-PDs but a fresh enough S-PD is stable enough for me (or if I need to go crazy overstable, enter Innova Stone) and the C-PD sometimes used to slip out too early for me. C-PD2s are way too much disc for me, I do have few for fun.
Did I miss something?