i have the 8.25 and the 10.25. they work very well, and like said above, are easier to sharpen. if i had to guess, the 10.25 takes about 25-30 seconds to get through 24 inches of ice. i have not used the 8.25, but i can assume it will be a little faster.
also, the chippers are supoosed to be ALOT better at re-opening a hole that has frozen over. i will be fishing out of my "new" wheel house alot, so i thought that was important.
what didnt you like about the lazer baldes?