[Elecraft] Practical toroid winding question

[Mike]

I am almost ready to start winding toroids for my K2.  I have run into this question before but never found an answer.

Suppose I wind a toroid, then check its inductance afterwards.  I find that the value is not exactly the same value as the schematic calls for, but after removing one turn (or adding one turn), it's perfect.

Should you,

a)  use the # of turns in the assembly instructions, regardless of the value obtained, since the designer knows a lot more than I do
b)  change the number of turns, since the performance of the radio is based on the value of the inductance

Wayne and Eric, I'd like to hear your answer on this as well.

Thanks, all.  I'm now half way through the basic kit setup.

73,
Mike, NJ2OM