Framing lumber trading developed a stronger pulse for those serving markets graced with warmer and drier weather. This was the case for western mills active in Southern California and Southern Pine mills selling into the South and the lower half of the Midwest.   Winter kept a hold on northern markets, where distributors and dealers dug out from recent snowstorms. Varying activity produced a mix of price trends, but the Random Lengths Framing Lumber Composite Price slipped $2 for the week to $362.       Week Mar 15 Week Mar ...