I know this is risky and could turn into a mess, but I am really interested in try to see if anyone has direct experience with both drives and has any opinions.

With my research I have the following that seem to be true...

V4 Contra Drive Drive
Maintenance: Inject Grease every 200 flights (do not need to disassemble)
Current drawn with 22"x22/22"x20 props ~70 amps
ESC 90 amp
Soft mounted

Adverrun XS Contra Drive
Maintenance: Grease every 50 flights (disassembly required)
Current drawn with 22"x22/22"x20 props - 90-120 amps
ESC 150 amp
soft mounted.

This is mostly gathered from websites/marketing and contra threads.

Anybody have anything else or corrections based on their direct knowledge?

My goal is to select the drive for my new Alchemy. I fly intermediate, with plans to try to get to Masters in the next 2-3 years....pending my dumb thumbs!

Thanks.

Rich
Krzy4RC