Even though I'm quite pleased with the power from the kit I'm going to want to try the solder mod. Any tips on how to proceed with this with the lowest risk of damaging the controller? I'm thinking of weighing the solder but perhaps that's overkill!?
Shunt is the n shaped thick wire and is on the end at the back. Add solder to the rhs about 20/25% of total shunt length, use fine solder so you don't apply to much and it drips every where. If necessary protect all nearby components with tissue /kitchen towel.