Hpattern is all about being as light as possible... so all the undercoating has to go bye bye! I can't really say how much weight this takes off, but it should be a decent amount. the undercoating is really heavy in some areas, up to 1/4" thick in the corners and mainly about 1/16" across the majority of the bottom of the car.
The only downside to sandblasting is cleaning out all the sand from the unibody after its done. This seems like a never ending task, the sand just keeps coming back again and again. Thanks to Eric Ritchey for helping me get the car cleaned up and ready for primer!!
Thanks to Eric Ritchey in Woodbury, PA for taking on this project and getting it complete so quickly. A one-day turnaround!