I’ve had success with this approach but hopefully someone smarter than me will do an analysis in the future & come up with a more definitive answer. With Bubble Boost on I’ll give it one extra spin to the third row from the bottom. My approach is when Bubble Boost is off I’ll play column 4 bubbles up to the second row from the bottom in hopes that another bubble will rise from another column to link up. Some treat them like those on column 5 & don’t even touch them. Some hustlers will play column 4 bubbles like those on 1-3 to the top. The topic of debate when advantage playing OM Grand is what to do with bubbles on column 4?
Continue playing until wild bubbles reach the top row. Just like in the original, any bubble seen in the 1st three columns is playable.
How to advantage play & “beat” Ocean Magic Grand?