Bill,
I shot 11 times to bag those 5 ducks. Was waiting for gimmee shots of 25 yards or less. Still wiffed on about 50% of the shots.
As for the price of bismuth, it's a pretty small % of the total trip costs.
We traveled to South Dakota from Wisconsin and to tell the truth, the grins I got from my hunting partners was worth the extra cost of the shot.
I bought the bismuth last year for about $16 or $17 a pound which works out to about a $1.40 - $1.50 or so a shot, a small price to pay for sooo much fun. If nothing else, it may make you try a bit harder to make a good shot.
rudyc