I bought some 5years (limited run fifth anniversary) and Howitzers (new non-5year stamp also with translucent Pinnacle) and have thrown both a fair amount by now.
5years are BEEEEEF. Like, X X 0 4 or +1/4 or 0/5...even with 450' of power I can easily **** up a drive with them. Overhand, skippy longer Firebird shots, FH rollers, thumber skips, grenades, those type of shots are getting a ton of love. Still can't confidently BH distance drive them without some solid headwind or a serious flex - just too overstable. I will say I've noticed some of the overstability lessening with age but mere mortals should probably never purchase one unless they want a speed 14 Stego. NOTHING close to the -3/3 flight a Cannon is described as.
Howitzers are somewhat of a middleman. Absolutely not -3/3 but also not the monster that is the 5year. More 0/3 -1/3 or so? BH flex shots or torquey FHs may love these, I find it as a perfect addition to my lineup. SuperOS 5year, Howitzer, Legend, lighter weight (167-168) production run opaque Aqua Pinnacle. Easy to cover everything beyond "control driver" shots...even use the more beat Aqua for low ceiling/low line fairway and control driver shots as well. BH distance rollers too. Teebird distance with no height to work with or confident run up? Yes please.
Legend Cannons tend to be flat (other runs often vary) and sit between opaque Pinnacle and the Howitzer translucent as far as stability goes. Start with a nice little bit of beef compared to the -3/3 turn and fade numbers a Cannon represents but with even a bit of wear they fly reliable and true. Maybe -2/3? I also recently acquired a few slime green Grinder Legends that are stupidly pop topped...among the domiest discs I've ever owned. They're back in that 0/3 -1/3 range that I labeled my Howitzer stamps with. Great for field practice repetitions but they won't see a bag of mine until my Howies are all lost.