Roger,
I like that test system with little standard-sized pins a lot! For situations where accurate testing on VHF and UHF is needed, and SMDs are available to sacrifice. Remember that SMDs shouldn't be de-soldered and re-used... At least not in circuits requiring reliability.
But if the the rule of the day is perfectionism, then I think that the 50? test load and the test short could be improved! Because as they are in that photo, both of them put the inductances of the 50? resistor and the short into the calibration. So these small inductance values, maybe 1 or 2nH, will be subtracted from actual measurements of components, causing a slight error.
This could be avoided by shortening the loop lengths of the 50? load and the short circuit device a little. The short could be made by bending the tips of the standard-length pins together and soldering them at their tips, while the 50? resistor could be soldered to slightly shortened pins.
I don't know if the improvement would be detectable, but let's be perfectionists today! :-)
