I have the version one of these had them 3/4 of year with 4 RC8 front shocks on a E-Maxx. I have flipped, rolled, landed on the lid on grass, concrete, rocks, and dirt and haven't had a single issue.I was going to go with FLM towers but chose to go with tread morehese so I can have the body lower than I could with FLM and they still give you plenty of shock positions.