So, I had a field session today (hadn't had one in a long while), and brought along most of my max D discs, including 6 P-DD2s, 1 ES-DD2 and 1 S-DD2. I haven't been able to throw these all year, and took them out of my bag some time ago. My distance form hasn't really been working this year (mainly due to lack of practice), but I had noticed a couple of things like badly angled reach back, lacking weight shift and too low pull line, so I set to work. After a few shots I started to get a hang of it once again.
Long story short I was throwing the DD2s more like I did last year, and the results were great. I'd been having trouble breaking 380' for a while now this year and now I was getting them to around 420-430' with some knocking on 450', and flying pretty consistently (except naturally on the throws where I instantly knew I messed up). All the different plastics and weights (max in the premiums, 3x171 and 3x175 in the Ps) flew on slightly different lines but were consistent among themselves, and I remembered why I liked them last year. I was also throwing Nuke, King, DD, Destroyers and Swords in the same session, and the P-DD2s were consistently the longest.
But I can also see why I stopped throwing them. They're not forgiving. They need to be thrown much faster than for example a Destroyer to get anywhere. This might actually be a good thing since it forces you to focus on your form, but mainly for practice purposes. So yeah, I'd happily put the DD2s back in when my form is working, but if I'm not 100% certain they stay out.