Justa fwiw...
When
@Mailman was restoring his XS2, I did a little research on the starter. The motor, clutch (bendix) and every gear in the starter drivetrain uses the same part numbers for all years from '72 to '83.... it was unchanged before and after the compression release was added and then deleted. If memory serves, Bob adjusted his so the switch engaged without the compression release actually operating. It worked just fine like that.