On page 37 of the assembly manual it says: "The legs of the heat sink require some force to click into place". The legs of my heat sink seemed to fit perfectly allowing for a flush fit between the heat sink and PCB without any force, although there was no "click" of any kind.
The regulator leads also seem to fit well without any force.
Am I OK to solder or should I try to use force to achieve a "click" ?