Fourball Better Ball Matchplay and Handicaps

I'm not seeking to deflect from answering this, but isn't it something your club should be explaining to members?

In a mixed competition, an allowance has to be made if there is difference in difficulty between the courses being played as shown in the Course Ratings )CR}. If the CR off say the white tees is 72.3 and off the yellow tees it is 70.1, the white course is 2 strokes more difficult than the yellow and in regular stroke play those playing the white course will get 2 strokes knocked off their gross score to equalise it with the scores of those playing off the yellow. These strokes are what you refer to as "alignment" strokes. Stableford is a bit difference in the calculations, but the principle is the same.

It is a convenient and practical way of administering this adjustment in match play to adding the two strokes to the course handicaps of those playing the white course, but in fact these adjustments have nothing to do with handicapping as they are based equally on the difference in the difficulty of the courses, not on the varying abilities of the players.

In a mixed tee, mixed gender competition you use the CR for the gender of each player.