[CAUT] Renner back action

[Ron Nossaman]

> I'll have to lower this one quite a bit just to achieve a parallel 
> underlever let alone to hit the magic line. I'm concerned that the top 
> of the raised underlevers will end up below the upstop rail even at its 
> lowest setting.
> 
> - Mark Dierauf

It should end up where you set it. Do what Keith said, and the 
longer underlevers will result in the flange center being much 
closer to making that magic line happen.
Ron N