hey scorp, what he means regarding average bi in his example is basically 2.2 + 3.3 + 8.8 = 14.30 spent on 3 tournies so divide by 3 for the ~4.86 is the average buyin you spend on each tourny and this can be used as implementing within a correct BRM. So basically it would allow you to play from time to time a bit large an mtt but still be within good brm rules.
One of the biggest things to remember in PLO is all 4 cards should work together, not 2 and 2 because you want to give yourself the best odds
of having strong draws etc. This is where essentially wrap hands are very effective like 89TJ and such, and get those in double suited and IMO its a premo starting hand in PLO. Double suited is only really great if they are still somewhat connected accross the four but even better if for example a hand like AcKcAdTd because you now have the nut flush possibilities and also great cards for a nut straight.
Typically straights+ are standard in PLO when it comes to a showdown so even a set if there are possibilities for a straight its very likely you are beat which is why I would take a wrap over double paired anyday I think in PLO. Just my thoughts obviously, I don't play a lot of PLO but do thouroughly enjoy the game.
One thing I can gtd in Omaha is that usually the nuts can and will change on all streets, so its great to have redraws even when you flop the nuts to improve your hand. Like flop a set or straight but still have outs to catch a flush or the FH obviously.
Thinking about al of this gets me wanting to play PLO now lol.