i have an echo srm 230 with the separated spool. i loaded up one side with the echo crossfire and the other side with the pulverizer stuff. went out ran it and ran it. which one do you think won? you may be suprised but when the crossfire ran out, i still had almost 2 feet of the pulverizer left on the spool. this is just test one. i'll conduct more tests before proclaiming the pulverizer is better. what do you guys think? has anyone else conducted experiments like this and if so, how'd they fare. thanks. randy.