Hi, I personally bet with another bookie but have checked out IAS and will probably be opening a second account with them just to take advantage of their Betadiv and Diviplus payouts on horses whose dividend can be expected to exceed $6-7. Looking at their payouts over the last few months it does appear that you get better odds taking one of these options over best fluctuation, but only for the horses that pay out big, examples being Bedouin in August who paid $6 on best fluctuation as opposed to $7.50 on diviplus and Pernod in September who paid $12 on best fluctuation as opposed to $17.39 on diviplus. The Ozeform website has archived details of payouts going back to February this year, so go to the website, check the figures for yourself and work out which is best for you. Hope this helps, good luck.