Hi all thanks for all the great advice, had to wait before i could respond as im currently limited to 2 posts per day. Bit of an update spoke to HCC via email today and they asked me to test the AC output from the Boost ports which by the look of it they are looking to rule in/out the fault in the post by RAF96. I tested and it returned 1.5V AC out of the boost port (dont know if this is good or bad). @RAF96 had a look at the teardown and it looks beyond my soldering skills so got me thinking of other options if it is beyond repair. As i mentoned earlier i do have an elink lying around which got me thinking, is it possible to connect the elink to railmaster as a second controller and use it to do any programming work? This would give me the elite running trains via railmaster or manually and also the ability to programme/read via railmaster. Then as my grey matter started to awake it got me thinking about the general set up anyway, assuming i can run both the elite and elink, if i were to run Prog and points from the elink (points via DCC concepts ADS and also DCC omegas) would this protect against any shorts as the frog polarity would then be fed from my elink bus whilst the main track would be fed via the elite bus? Hope that makes sense. Cheers John