Look quite simply, you cant tee off when you someone is infront of you; Think how long it takes to tee the ballup and hit it, multiply that by 4 or 5 which is obviously longer, those people have to walk to their ball hit it out of range. These maths of a 5 ball every 6 minutes assume each person is a golfer capable of hitting the ball where they want to, be out of range of the next group, run to their balls..its complete paddywhack!!! I find it unbelievable that you can even think theses could be 18 hole rounds x 200,000 in one year. I accept 100,000 could be done. Hawaii will average 12-13 hours of playtime, but you need to deduct 3 hours, because the last time needs 3 hours to complete.
A 2 ball is 6 minutes, a 3 ball is 7 minutes , a 4 ball is 8 minutes... 10 minutes for a 4 ball is better, but it takes time for each person to tee off, roughly 1 minute. It takes roughly 3 minutes to walk the 200 yards and there is time to complete the next shot. Time is lost when groups search for balls, errant tee shots, etc... The figures are probably 9 hole units.