Viper RT nuts.. what line do you use?

[viper7mi]

I finally took the viper out this week and rode 240 miles and it was great. I have the yamaha RT nuts on the transfer rods on the 2nd line. The rear of the sled had alot of fish tail action. What line works best with stock sled and skis?
Thanks

What line works best for c&a skis with 6" shaper bars carbides?

 

[dmaxx]

I run mine all the way up to get more traction on the rear.

 

[viper7mi]

All the way up means (no lines) right? No lines = most transfer and all lines equals least transfer. Correct me if I'am wrong.