[invisable]

I agree with you I think power is and always will be the main issue here it has been reported that some of the model b usb chips actually choke the voltage which ends up supplying the broadcom chip this is probably why some need to overvolt more than others at lower overclock values. I think this is also the reason why some people can't reach much over 1000 even on a decent power supply.

Most pi's should be able to run at 1000 as you say it's the same chip, however it's not the same manufacturer there are variants of the ones made by Samsung and variants of ones made by Hynix. Just Like there are variants of the usb chips it's going to be one of those things when testing as everyone's is slightly different.

I'm enjoying this thread