CRASH said:
One pice of advice, keep the sway bar on when practicing. The nose will dive under braking and turn-in really badly without the sway bar attached.
CRASH
The presence of front anti-sway bars (with low bar resistance rates) is one reason the "CORR" method has gained some favor during endurance off-road racing.
The turn-in (axle steer). Dive is to be expected with the long travel, even if it can be countered with dampening, and hooking up the stock anti-sway bar limits the travel (how it prevents the axle steer). Limiting travel when long travel helps the vehicle at speed is not always the best solution (but it is a solution for the street and flat courses, and when the bar has long control arms).
Braking in the straight, before entering a rough terrain turn (the CORR method), limits the speed where the high roll axis of the suspension can make the vehicle unstable in a corner. It minimizes the risk of a high-side rollover with the suspension tucking under the chassis. In a CORR race the time is limited, so a single rollover can lose the race. Most teams believe the risk and the potential for additonal speed from a rally turn is not worth the DNF (with or without an anti-sway bar).
The difficulty of keeping the anti-sway bar in Baja style endurance races is that the races are very long, long enough that the speed you may gain in a corner with the bar on flat corners is easily made up on the straight sections where the wheel travel helps. You also do not have the luxury of flat corners. The corners are typically rutted sand washes and unmaintained backroads riddled with crossgrain ruts and whoops, both waiting to catch the swaybar equipped vehicle roll axis above the CG, with minimal roll compliance to allow a driver the chance to check the rollover with steering. The ride compliance without the bar's added chassis roll resistance is improved enough on the straights, and rough corners, to eliminate it's advantage over the length of the race.
If you do catch an edge on a fast corner, and rollover (everyone does now and then), the time lost can be gained back over the next few hundred miles.
I do not want to claim that a rally drift style turn is not found in Baja racing, because the fast drivers are good enough to drift a truck with over two feet of wheel travel at each corner in a flat turn (without anti-sway bars). They use both methods of beating a turn, although the number of fast corners is limited (by terrain and course layout) so it's not as important to carry speed into a corner as in a Rally race (or even CORR style racing).
Happy Trails!