Well since the '08 code change now requiring us to use the 60 degree column for SE / SE style R cable I have an excess number of #2 SER spools in my shop. Bought them a few years back on a closeout to use primarily for 100 amp residential subpanels. So what are all you resi. guys using now for your 100 amp sub panels? Copper / Romex or 1/0 SER?