From the Globe and Mail on market timing:

General stock market (S&P), months ranked from best to worst:

Dec (best), May, Jan, Nov, Oct, Apr, Mar, Feb, Jun, Jul, Aug, Sep (worst).

However, gold stocks do well in September, even though general market doesn't - gold stocks up avg of 6.3% from 1990-2007, producing positive results 78% of the time.

So those two items suggest hold on to KXL. Fanny and Freddit bailed out on Monday, may be a market positive.