I always had CVDs till I got RPM arms and bent like 3 of them so I moved to sliders and no problems since. They handle brushless power with ease and only problem is arm clearance as they are so thick. This does not matter right now that much as my maxx is in race mode.
Radek
V4 D8 - RX8, XERUN 4168SD
F1-09 - Tekin RS Pro, 17.5t Redline, 2S LiPo
Sakura Zero S - LRP, Saturn 20T, 2S LiPo
*EX-10 Eurus*
The revo sliders have stood up to all my BL racing setups and come to think of it, I haven't actually seen anyone twist/break a slider when running a racing setup.
If you are able to twist one then I would consider putting your revo on a diet
Running a center diff will also help unload stress to the sliders.