Hi,
Sorry to throw my tuppence into the mix but I really must sing the praises of railclamps from guys like Hillmans. I know they might not be the cheapest option, that is certain, but they really have made a massive difference on our line when we started slowly changing most of our old LGB style railjoiners. The can also be used for power connections too, as eye hole solder tabs can be connected onto the screw terminals. The following few photos show how we used Hillman clamps on a fairly new section of track that had a massoth reverse loop module and switch decoder hooked up. The track will be painted on this section which will help blend in the clamps, when we can get round to it!
Thanks,
All the best,
Gavin