I love tuned stock variators. The fact that they accept ER3 weights makes me believe they're the best stock variator for budget tuning. Never really had clutch sticking problems on em.
I dont really like clutch function ER3. I feel like they dont variate that much farther than stock. I used to always have clutch sticking problems with them but that was multiple years ago. Maybe I'm smart enough to figure out that issue now.
I really like clutch pulley peugeots. While I dont think they necessarily make a bike faster.. they will def RIP off the line way harder than a starter clutch style Peugeot variator. Belt alignment can be a little hit or miss and potentially more of a pain than mobyland.. theres ways to correct it when its off but its sorta stressful hahahah. Compared to moby where it's like bing bang boom done. But then again I've had clutch pulley set ups align pretty damn good right out the box. Wild stuff man.