Slipper clutches weren't meant to be worthless. This result just means the Savage X slipper is worthless
Another more expensive alternative is a center diff. If you go this route you won't need a slipper clutch, but your drivetrain will be protected well still.
SH Z-Car, Custom Crawler, 8s Savage,
12s XTM XLB 1/7 buggy,
4wd 4-link rear/IFS Pro4 truck,
Custom Hyper 10 Short Course,
Belt-Drive Mammoth ST 1/8 truggy, 4s 17.5 MM Pro HPI Blitz