i think my dad told me i could have the oddfire fly wheel rebalanced and put on an even fire. i would like to run the heavy oddfire for crawling. i havent spoken to my dad in years. i forgot what i am supposed to do. am i supposed to get it neutral balanced or zero balanced? or do they actually have a measurement for the even fire? will this affect by harmonic balancer? will i have to open the engine up and balance the crank? thanks in advance guys..