i have 4 caps (35v 330uF) to add onto my ESC's, 2 per esc to make up 4 caps on each, i know i can solder them to the PCB or add to the power in leads but was thinking of buying some PCB and soldering them onto the board side by side then adding them to the power in leads near the exsisting caps

can it be done this way? as just added to power in leads does'nt seem very secure to me