They have,as you posted earlier this past Wednesday of #8343 being in service without its tracker working properly. I myself have seen a few of them out with and without functioning trackers (#8345,#8348 and #8349) along with a few new flyers recently, could be a number of factors in regards to that but to say they haven't been in service for a while is a bit of an exaggeration. I don't want to over speculate but could #8325-#8349 have a different setup than of its counter parts #7900-#8324? Could the glen be holding out for possible moves to 103rd? Maybe every driver at the glen hasn't received training on them that we know of . Could be a number of factors but if anyone that keeps in touch with drivers or reps from the glen would of said something by now about it.