Ground ball pitchers in the 70's

Playing in Busch Stadium and have Bowa/Morgan.
Want my SP'rs to throw GB's to maximize my D up the middle.
Who are the Top 3 RH/LH GIDP pitchers from the 70's?

There won't be many (any?). The 70s set's pitchers don't have gb A's on their cards. And all pitchers (in all sets) have exactly the same chance for groundball X's to all positions.

There won't be many (any?). The 70s set's pitchers don't have gb A's on their cards. And all pitchers (in all sets) have exactly the same chance for groundball X's to all positions.

I found a Ratio analysis on baseballreference.com that was helpful

Helpful how? The only way a SOM pitching card can induce more doubleplays is if they have gb A chances. Obviously, good infielders help get more doubleplays via the X Chart, but every pitcher has exactly the same number of X chances.

I suppose a pitcher who has a lot of walks and singles on his card (and a good hold rating would help) would get more doubleplays since first base will be occupied more often.

Looking more for pitchers who throw gb's vs GIDP with my infield