This has been done to death every year, and unless you are in cloud you cannot log IF no matter how dark it is outside.
Yes if you want to get technically correct, but there is one word CASA are not interested in and that is the word
practical. So because you spend hours up north going left and right due weather and fly through the odd puff you shouldn't log that 10 sec as 0.2 IF, in order to keep that 3.0 IF in last 90 days so as to enjoy the safety of Instrument Flight Rules (other traffic reporting, you own reporting for SAR, SPECI's, etc.)