[Elecraft] Solder

[RBrigham1 at cs.com]

I just received a box with K2 parts in it and #5924 on the outside, and I am REALLY looking forward to some time off this holiday so I can dig in. But I have a solder question before I start. I have a brand new spool of Kester Pb-free solder (98%Sn and 2%CU+Ag) with what I recall is standard active flux. Can I use this on the kit, or should I go with the old standby Pb/Sn solder?
Thanks,
Rob
KC6ROC