[mistercrash]

My LST XXL conversion is very close to 14 pounds ready to run with a couple 3S 5800 mah lipos and the big stock tires. 5 or 6S is best for this truck. 4S is ok for some but I find it a bit lame on 4S. The E-Revo does very well on 4S, it's 3 pounds lighter hovering at the 10 pound mark. Some use the MMM with the 2200 motor, others like me prefer a little more grunt by running Neu 1521 or CC 1520. I've seen people run the CC 1717. I run the Neu 1520 1Y. If I had to do it again, I would try the CC 1520.
The only recurring problems I've had with the LST are the steering knuckles (can be replaced by aluminum ones) the steering turnbuckles ( I replaced those with 5 mm Lunsford ones, problem solved) The front shock shafts ( I made my own 5 mm thick shock shafts, problem solved) and the rear diff ( I put 70% punch control on the MMM, problem solved).
Up to now, for my LST, the best bashing tires and wheels I tried are Proline 40 series Mashers, mounted on Losi 420 series dish wheels and Racers Edge two stage Maxx inserts with and extra layer of foam to over stuff the tires.

The LST is not a speed machine, it is a real Monster Truck and is more comfortable at 45 mph max or less. I gear for 38 to 40. If you crave speed runs then the E-Revo Brushless is better. The LST is a true basher but less of a racer. The handling is good but always real monster truck like. The ERBE is a true racer and also a good basher but more fragile. The handling is amazing, more Truggy like than monster truck. No matter what is said, the ERBE is a 4S vehicle. Anything higher than 4S and you start breaking drive train parts very often.

Hope this helps.