Ok. LA's with lubrications wich I use runs smoother and with less frictions. I first use it on 8265 Front Loader, which strugless the same, becouse of long gear trains and LA's friction.
Note that you can use only lubricants with Teflon (I use it for lubricating bicycle forks and shifters) which are not agressive to plastic. One other thing regarding LA's improvment - double treads may work cos they split force eqaly by two between screw and sleew, but main problem is contact between sleeve and LA's body. That contact surface needs to be solved. Solution: better tread surface quality (means slower production - by two or three passes by CNC production machine or by slower knife speed), and harder surface materials between plastic sleeve and body, maybe teflon plastic - hardened HSS metal plate.
Till new improved LA's come out, stick to teflon dry oil and fewer gear transmisions.