Information to be trusted is very limited, and frequently video poker authors do not speak highly of others in the same field. Blackjack games are very similar from place to place. Although good players certainly make adjustments to their game depending upon exactly which rules are in effect, usually the play of a particular hand is identical no matter what the rules are. In video poker, the rules vary widely. The strategy rules for deuces wild are totally different from those at jacks or better, or double bonus, or joker wild, or . . .
Nobody is an expert at all video poker games.
There are hundreds and hundreds of different variations. Even the most knowledgeable players only know a relative few of these. There is a difference in teaching the games. I've taught video poker classes at the Fiesta for three years. Not likely to happen.