Family tournament format recommendations

[Wadess]

We have a family tournament twice a year.  Each branch of the family fields a 2-person team.  Group A has won both events so far.  We have played straight scrambles.  The first two groups have been three strokes apart each event, but group C was 10 back at yesterday's event.  The team composition is:

Team A:  (Father\son team)

Player 1:  Avid golfer. 12-14 handicap.

Player 2:  Regular golfer.  15-20 handicap.

Team B:  (Husband\wife team)

Player 1:  Avid golfer.  10-12 handicap.

Player 2:  (Female) Plays 2 times a year.  Shoots around 95-110.

Team C:  (Father\son team)

Player 1 & 2:  Plays 5-6 times a year.  Shoots 95-110.  Long but wayward.

I'm looking for recommendations on how to make things more enjoyable\competitive for group C.  Any recommendations are welcomed.

Thanks.

[Aguirre]

Mix up the teams?

Alternatively, play a modified stableford scoring event.  Like The International used to have.  This definitely favors lower handicaps, because they can make plenty of pars that count as birdie points.

EDIT--In a 2 man scramble.  Still definitely helps in individual play, too.

[Wadess]

The teams are made of each sibling, so we can't mix those up.  I'll look into the modified stable ford.

[Aguirre]

The teams are made of each sibling, so we can't mix those up.  I'll look into the modified stable ford.

It definitely helps higher handicaps.  I used to do it with my mom and dad in our three player match play rounds, but she kept destroying us.