I may resort to that but not my first choice. The concern is knowing exactly what the setting does and getting that benchmark reference so after twiddling, it can be set back to the initial setting. with only one meter and not knowing what trimpot does what, you have a good chance of missing the setting.
The situation arose as a 16s battery lost a cell so it got rewired as a 15s, thus the charger would overcharge the modified pack. Will likely just add the 1s back into the pack and carry on. thanks