Proxy playback in FCP realtime?

[BigLu]

Should i be able to play realtime in FCP with Proxies?
Currently i have to render to playback at all.

Im only useing M Proxys, would be nice to be able to use H Proxys
RED footage was shot 4K HD
FCP 7.0 FCP Studio 09'
MacBook Pro 2.93 Nehalem
4GB ram
FW 800 external drive.

what am i missing
thanks
Luis

 

[Kaku Ito]

M proxy is the most practical.
You have to setup the timeline's RT playback to "Unlimited" to be able to playback realtime.

 

[BigLu]

Thanks Kaku
Appreciate it.

 

[Ben Holmes]

Set the RT quality to Low/Medium and the framerate to full. Should give smooth playback on your system.