Maybe because he's converting it like his sig states?
The Vantage chassis' are pretty strong, but, I have seen one broken in a stock nitro 3.3. Simply from doing jumps, mind you they were pretty big, but, it still broke.
It'll make your Revo twist less than the stock alloy job.
Losi SCTE SC4 Pro 4000kv, Tekin RX8, 2S
MP7.5 Kanai III Tekno Neu 1515/2.5D 1700kv MM 4S
LST 2 Carbon CC 1717 1Y 1580kv MM 6S
Futaba 3PKS Spektrum Pro