GARGRAVES UNCOUPLING TRACK

Gargraves has a number of different tracks. Some of the earlier versions of the track had the magnet too high and caused the problem you seem to be describing. There were a few posts on how to remedy the problem. Your fix may work, a lot depends on the item number. GG is pretty good at help, dropping an email off to them might get you a quick answer.

Ralph

It is the new style short track #217.  The magnet is fine car does not hit that the roller on the pickup drops into the gap on the middle rail between the uncoupling track and adjoining track.  The plastic pin keeps the roller from dropping in.

There should always be a metal pin in the middle rail unless you're creating a separate block.  However, why are you insulating the uncoupler track from the adjoining tracks? It's not necessary to do so.

You said that you  used an insulating pin in the middle rail of each end of the uncoupling track. Why insulate both ends? There is no need to completely insulate the uncoupling track from the block that contains it. 

If the uncoupler is the first track in the isolated section, you only need to insulate one end. If the uncoupler is not the first section of track within the block then it needs no insulating pin. It should be treated like any other piece of track.

I understand.  I put two in there because I am out of regular pins.  I will remove one when I get the ss pins.  Yes I understand to isolate it like the other blocks...Thanks