I ride Thunder Burts, the lightest Raceguard, 440g for XC in the New Forest. Still run latex tubes. Truely awesome speed and acceleration. Race Kings are also good. Tried the protection version, after that rolling resistance test, and there is certainly more carcass too it.
The Thunder Burts dont clog with mud and they give superb traction even in poor conditons. I ride mine through winter, but know that while they are alittle more sketchy i am travelling faster. Almost no hum on the road. Miles better than small block 8’s and about a chainring faster than Rocket Rons.
The continental rubber black chilli probably lasts longer than the Schwalbe, the tests also show that, but thats mileage dependent on what your doing. The Thunder Burts are lighter than Race Kings so acceleration is better.
Just tried XKings and impressed with them, roll very well considering the extra grip provided. More weight with them though.
Thunder Burts seem exceptionally good tyres if your XC with connecting road sections bent. Cheapest in Germany.pp
If you want to go fast, you’ll also need light rims, Crests or equivalent in weight/ bor/ trace etc.