While pio spam used to had some uses, skipping tiers was a possibility prior to the teching timing changes.
Yeah, man. Pio spam used to be awesome, right? Right?
And skipping to T4 was equally shortlived, for about a month after release, and roughly 50 patches ago, when Panther still had teeth and 3/4 of DLC Commanders didnt exist, let alone 2 new factions.
As i´ve already suggested before, why is there not a swapping on the prices of BP and Tiers. You are actually paying the same but it allows you to skips tiers, such as going for a bit more affordable T4 or rushing T3 skipping T2.
As you said, it would not make much of a difference. The BP and Building costs are not far apart.
So wouldnt "allow you to skip tiers" really any more than now. So you sort of defeated your own suggestion.
Its a start, but the small differences in cost from the swap are so small as to be practically unusable.
The tier structure is linear, and more or less an even split between BP and Building in terms of cost.
The result of which, as I expressed at some great length, results in callins outclassing T4, and the difficult paradox that for cost and timings, T4nunits reallynshould acrually be better than callins, but which for obvious reasons, is impossible, because they would either be so cheap, or so poweerful at their specialty, or both, to compete with callins, that its simply not possible todo.
Im not sure you really yet understand what I mean by that.
Perhaps I am explaining it poorly, though I tried, at length.