[Josh Haggard]"1: Should I just conform all the clips to 30 FPS and then change the speed of the replay clips?"
Once you conform in Cinematools, the clips will run at 50% speed.
[Josh Haggard]"2: I am editing offline in Pro Res Proxy. Do I need to do anything special when I recapture the footage at Pro Res HQ if I have conformed the offline clips?"
You can not recapture the conformed footage.
FC can not see relation between the conformed files and the original footage: Different time-base, clips length, date, reel number,..
THE MOST IMPORTANT THING IS THAT YOU CONFORM ONLY DUPLICATED CLIPS.
CONFORMING IS A DESTRUCTIVE PROCESS.
CINEMATOOL CAN NOT CONFORM BACK TO P60.
I think it is gonna be a case of:
editing the 60p footage in a 30p timeline
media managing into a new project and recapturing only the relevant clips
Duplicating the .movs of this project .
Conforming the duplicates to 30 fps.
Importing the duplicates.
Using in the 30p timeline where appropriate.