mattgolffan1: i use the gi-d balls all of the time because they slow the meter down more than the es-balls, but imo they have about the same durability as the rest of the balls ive tried..
Not really... BX-D balls get spent much, much slower than the other 2 types, GI-D and B-ES.
BX-D balls are also pretty cheap, so unless you outright lose them (I once put three consecutive tee shots into the water hazard at Kiawah 17, too), you can pretty much ignore the costs of playing with BX-D balls.
That's not really the case of GI-D and B-ES balls; a 3-pack of those may be gone on a single day or two of casual play. It may only be a difference of half a dot on the ProShop's description charts, but in playing practice, the difference is very much appreciable.
Finally, B-ES balls do not slow down the meter at all. The only balls slowing down the meter are GI-D; it's the so-called "Feel" attribute on the chart.