Is there a big diiference between the accuracy of some tracking force scales and others ??
For instance, something like this one https://www.ebay.co.uk/itm/Digital-S...-TL0:rk:2:pf:0
against something far cheaper like this made in China jobby https://www.ebay.co.uk/itm/Digital-C...C~CH:rk:9:pf:0