The current MR has an article about improving performance of your layout through the addition of buses (14g wire under the track, spliced into the track at specific distances to reduce voltage drop). I have a rather large loop of track and my DCC equipped engines do run slower on the far reaches. I ran the wire, spliced it in and then had new problems. As one of my best performing engines approached the "bused" area, it started to lurch and run poorly. My track isn't blocked and I was wondering if that is required to make the bus system work? My guess is that the engine is getting its data packets in duplicate and slightly off phase. Thoughts? Also, if I block the track, are you able to smoothly run from one block to the next with no noticable difference? Even at very slow speeds? Thanks.