Our club has been converting many of our track powered locos (G-scale) over to either Battery only or Battery/Track power. We have decided to go with the Crest Revo TE for uniformity - So far so good - EXCEPT - with eight locos and 4 hand-held transmitters, when one transmitter is linked to a loco it wipes the link from the other transmitters. They have to be "re-linked" to gain control again - then the other transmitter loses its link. ARRGGHHH - We have not been able to figure out if they can be programmed to hold the link - to have all the trains available to all the transmitters all the time. Anybody got any experience with this or ideas.