5: The way to avoid being counterfeited is to hold re-draws
The strongest hands are those which can make the nuts with re-draws. For example if you have A♦ 2♦ 3♥ on a board of 4♦ 7♦ 8♠ , then you have a made low, redraws to the low if you are counterfeited, and a draw to the nut flush. This will match up well against any hand. Where possible you should seek to play hands which have some combination of suited aces, wheel cards and counterfeit protection.
6: Middle cards are death
A hand like 8-9-T-J may look pretty, but it is badly flawed. If it makes the higher end of a straight, then a low is likely to be possible on board. If it makes the lower end of a straight or a flush it will not be the nuts. The nine is the single worst card in the deck because it cannot contribute to a low. This led Dan Deepen, an Omaha Hi Lo expert, to describe the nine as ‘the card of death.’
This is an extract from Omaha 8 or Better: Winning at Hi Low Poker by Andy Mack