Good Morning Group, I'm expecting my K2 Monday, and have my first question: I bought Silver-Bearing Solder at Radio Shack (.022 dia, 62/36/2, #64-013E) and now, after reading so much on what I used to think was a pretty simple subject, Rosin Core: Good, Acid Core: Bad, I wonder if what I bought is OK? TIA, 73, Tom, W3QS