Fluid or magnetic damped scales are not really economically viable for small clubs some are exchanging hands for about £200 or more.
As for the electronic ones, I have as you know, two sets of Salters, and two Rapalas and a generic chinese one and they all are accurate and have been reliable for years.
Anyone who has trouble with the digitals should employ a 10year old to show them how to use them.
Dial scales are an absolute pain when weighing in bouncy fish such as small carp, and there’s a technique in reading the scales that most don’t use.
Lower the weigh bag slowly onto the scales and read the scale as soon as you let the scales have the full weight of the bag. If the fish bounce about, lift and repeat. The more you let them bounce the scales the longer it all takes to settle. A damp cloth over the top of the fish helps too, but it also helps not to have too many small fish in the bag unless you fish at Toft [lol]