Ok money saving tip number 101
The only problem with using connecters is they are unsightly and a tad expensive if you want to use a lot
what i have done is bend a length of brass rod or (maybe you can use copper earth wire from the inside of 30amp household electric cable)
and feed it between the rail and the plastic tie that lies against the underside of the rail between the sleepers then go over one sleeper and back though the next tie, Cut off level with the outside of the rail on one end and leave enough on the other end to fit a double plastic connection block, do the same on the other rail but make sure you go under the tie so it doesnt short, feed that into the other terminal of the connection block and you have a power connection that is easily covered by ballast as i have many isolated sections on each of my loops i feed power to both ends using the same system. i also have used it to bridge across any trouble some fishplates
since ive used this system i havent notice any drop in power even when running my Mallet and other locos at the same time.
The only thing you have to try and remember where you fitted them as they cant be seen
Tony
if your confused il post some pics in the morning