There are certain upgrades like the creation of a new model of Tank Destroyer, or a new size artillery tube that are flagged "when = now", and I'm curious as to why that is. For those who don't know what "when = now" means, basically what it does is instantaneously updates every division's stats that are benefitted by the tech, without you having to 'refit' the division by sending it back home to upgrade it. Why should the development of a new type of equipment not require refitting in order to obtain the improvement?
An example similar to one that was previously presented elsewhere sums this situation up in the historic example that follows:
In Berlin, December 1942, a new more advanced model of tank destroyer is completed and set for production. Paulus' 6th Army encircled in Stalingrad suddenly finds itself with the new Tank Destroyers within his Mechanized Infantry divisions, and instantly his tank attack capabilities are increased, despite being cut off from all supply and having no link to the rest of German occupied territory where he might obtain the new vehicles.
An example similar to one that was previously presented elsewhere sums this situation up in the historic example that follows:
In Berlin, December 1942, a new more advanced model of tank destroyer is completed and set for production. Paulus' 6th Army encircled in Stalingrad suddenly finds itself with the new Tank Destroyers within his Mechanized Infantry divisions, and instantly his tank attack capabilities are increased, despite being cut off from all supply and having no link to the rest of German occupied territory where he might obtain the new vehicles.