hey stuey, i did notice the diff between 8-1700 and 10-1300 no vertical on the 8, but since i had the batt figured id give it a try, its sort of like the 10 cell is like a 2 stroke and the 8 is a 4 stroke, not a lot of speed but still climbed out, just slower, when i first launched the bug with the bl setup i wasnt prepared, so when it left the bungee i gave it a little up and full throttle and th