I normally run my Proline16803 at -30 all year without flushing and don't have any obvious problems with RBI. (Probably Rick's case 2 mentioned in one of the above posts). The only time it has been a problem was when I (foolishly) tried to take some darks immediately after taking some T-shirt flats. The RBI leaking from the flats was immediately obvious as the first dark downloaded.
Geoff
|