That's the first time I've heard that? About the plastic bending more. I would be very interested on finding out more about that, can u get a video? If its true, wonder if it's bending during normal use?
From what I've read a sc10 with a few rpm bits should be the most durable.
Don't bother with the slash, its no good through high speed bends, or changing direction.
on my torment, you can take hold of the outside of the A-arm and twist it a few degrees. Thats "give"
durning normal use it doesnt happen, but hit a corner with just one wheel and that arm flexes instead of breaking.
But push an RC hard enough and a soft plastic arm or shock tower can give during racing...which makes it less predicatable.
High end race cars often use carbon fiber. yes, its light, but its also stiff. Good for reliable suspension, bad for when you hit something at a funny angle.
My shock towers I can also bend by hand. When there is a odd landing, the shock tower gives along with the shock to soak it up.
To date, my torment, brushed, always running a 2s lipo, has never broken a shock/tower/a-arm. Ive broken 2 steering hubs, a driveshaft. Thats it. over a year of hard driving, both bashing and racing.
thats also a reason some will tell you that "alloy" upgrades are not always best for bashing. they may bend and thats it, where the stock plastic parts will flex and go right back.
But again, on the track it didnt come close to what the Losi XXX was doing.
there is a pair of used brushless SC10's I could buy for $150 each.