The buggy is super stable on the street. It handles 50+ mph speeds like nothing as I used to have the HV4.5 in there. I'll find out the top speeds of the HV7.5 and the feigao 9L on 4s and 5s for sure when I get my eagle tree data logger which should be in the mail soon.
Check out my custom converted 8ight:
Sub 7lb, lowest CG of any 1/8 buggy