Doug, that is a neat way of fitting them. Upside down is good after all
I fit the traditional #5 in its own box with a screw thru the middle,But which ever way suits the modeller, good.
Alastairq - your comment "or..are US NEM pockets always lower than Euro ones?:" To my knowledge, US models do not have NEM pockets but in most cases have a "standard" box to take the old style X2f & Kadee type couplers. The Kadee plug in couplers for NEM was designed for the standard in Europe as Europe did have a standard height for NEM boxes. It has only been recently adopted by DOGA for UK models as well.

I fit the traditional #5 in its own box with a screw thru the middle,But which ever way suits the modeller, good.
Alastairq - your comment "or..are US NEM pockets always lower than Euro ones?:" To my knowledge, US models do not have NEM pockets but in most cases have a "standard" box to take the old style X2f & Kadee type couplers. The Kadee plug in couplers for NEM was designed for the standard in Europe as Europe did have a standard height for NEM boxes. It has only been recently adopted by DOGA for UK models as well.