2007-02-21 // 17:39:36
milkyjoe
it sounds like the shutter maybe a little sticky, if you give it a clean it might clear up the problem!
The shutter sticking/lag wouldn't really affect time zero film but it overexposes the faster 600.
Apparently :-)

^ How do I clean the shutter? Is there disassembly involved?

2006-12-29 // 21:48:14
sapata
Yeah...mine is shelved already. Can't aford spend anymore money on films. The place you sent me via link seems to be good but I'm based in UK so I guess I have to keep trying around here. At least you've got youre SLR600 !!

2006-12-28 // 15:10:08
sapata
Got the same problem as you have but mine is even worse because I can't get no images at all !
Have you tried the new SX Blend already ?
Please let me know if you find the cure...'cause I've tried everything...

^ Well, I've shelved the SX-70 for the moment. Too busy loving my SLR 680 SE! I got the SX-70 recently and I've actually only tried 600 film in it. But I think I'm gonna try and send it to Precision Camera to see if there's problems with it before using it again, especially with $Blend film$.