I've got the sockets wired and just need to verify one final detail. The heater resistor in the extended fp 3 had a piggyback 1.2 ohm/3/w in addition to a .62 ohm/5w. The 6sn7's call for the replacement of the .62 with a .15 ohm. No problem there, but do I keep the 1.2 ohm in place?