Well its good to se that you did get louder everytime. Most dB drager's stay around the same dB, unless they sandbag...LOL. So what it appears to me is that you were not sure of what note to play before you got the show. Once you figure out what the best frequency for your vehicle is starting off with that note on your first run should yeild you the loudest score of the day for you. On your way to the show did you play the subs? I recommend that you keep the subs completely off (you can turn them on before you have to compete JUST to make sure everythung is working, but not loud and for a few seconds only) Going up to the "tower" with your subs completely "cool" gives you a lower impedence for your very first burp. While playing your speakers on the way to a show the voice coils will heat up and raise you impedence of the coil, resulting in your amp producing less power.
I always got a good laugh out of the guys that roll into a dB drag event with there systems full blast, not only does it hurt them at the show, but never do they have anything worth showing off. Then they get spanked at the show and wonder why and ofcourse they leave before the show ends since they lost....LOL
One amp per woofer is a great thing, but will require proper tuning so that all the amps are producing the same power to each speaker, espcially if the woofers are in a common chamber. You may be able to acheive 150 if your amps are not tuned properly. Do you have two amps now? Has anyone matched the gains at the frequeny you plan on playing at the show? IF not then you should gain some dB's right there alone.
