As someone who has in the past been responsible for employing pilots, I think there is great advice on this thread. I looked for a ratio of about 10% of total time to be IF, however, here you have Grrowler, who has less than that and a perfectly honest explanation, just as you have IrishJetDriver, who has way more, but look at his name.
Employers are not stupid, If you have been flying in Dubai and 30% of your total time is IF, they are going to scrutinize your log book.
My advise would be to fly whatever you can whenever you can, and it will all even out in the end. The most important thing is to KEEP IT HONEST.