Thanks for clearing up.
No, I really meant tungsten versus carbide.
LHS-1 have socalled tungsten balls for 289 dkr for 12 balls. LHS-2 have carbide balls for 67 dkr. It's more than 4 times up. The cheap ones are actually XRay.
That price difference made me think, that carbide and tungsten was two different things ! But now I realize, it was just a rip-off !
My HPI Pro2 ball diffs have never been very good; So I want to change the balls and turn the diff washers around.
The challenge is that I need both 2,4 mm and 2,0 mm balls. 2,4 is easy to find, but it's harder with 2,0 mm balls....
Schumacher Mi5 - Sanwa MT-4 / RX-462 / KO Propo PDS-2123 - Nosram 5600 X-treme Saddle Pack - LRP SPX Zero/X12 17,5 - Nosram Stealth Touch Evolution - MAAS SPS 9250