Dive-xtras sierra trigger issues

[rcn]

The reed switch does not sensor the trigger magnet when everything is assembled. When moving the magnet directly next to the switch it runs the prop. Dive-xtra suggests ordering a new rod.

How common is the fault caused by a weak magnet? Should I order a rod and take my chances? USD 65 plus shipping and handling to Sweden so I am eager to find the right corrective action.

Attached some pictures

[SR]

I did have to replace the rod on my dive-xtras Cuda, but stuff had gotten in the hole for the trigger rod and damaged the magnet. I cleaned the hole out replaced the trigger rod and it has worked since.
Since the magnetic reed switch works with the magnet closer, I think it is the trigger rod magnet.