The P32 reads the card every single time it powers up, the P41 only reads it the 1st time, until the battery door is opened again.And the bigger the card it has to read the slower the cam is going to be.
WTS has some new IR glass and filter for the 32 and 41. Daryl told me the pictures are 30-35% brighter and clearer.So there will be no reason to fool with a 600 IR. I'm putting one together right now I'll keep you poted how it turns out...Joe