I have two 150' loops connected to one recent L (or K?) version TIU. But old handheld. 4.03 software update. All PS2 and PS3 engines (except Premier Zephyr which is all tens) get 3 or less signal strenght in about 50% of loop with solid 10s only nearest to the TIU. But operationally I can't detect a problem, except get "check track" message occasionally in extremities. Engines always respond when I constantly vary speed. Shutdowns, restarts, sound controls are all ok.
Before I dive into deeep diagnostics, I ask the basic questions. Could I somehow be getting false results? If not do the poor results matter as long as function is ok? Or am I just on the edge of having problems?