I’m not sure I fully understand the impact of HD blacks in mid-tone and highlight toning, since both HD and non-HD curves are using the same shades 2-6. Looking at a few of the curves, it appears that in the HD curves there’s a greater reliance, i.e. higher aggregate ink load, on the lighter shades in these tonal values, and perhaps those lighter shades have less toning component.
Reading this, it sounds like the HD inks, or at least HDPK, are a case of on the one hand, on the other hand. There are clear dMax benefits, but in order to get them there’s a loss of toning. If you opt for Pro inks you may be able to work around that. But as I understand it, Pro is warm and cool and you can’t really simulate the SEL inkset in Pro. If you want SEL then you have to make the choice.
I’m waiting for sample prints to arrive to help make that choice. I’m hoping to make a quick decision so that Wells can ship inks to me to meet me in the US quite soon so that I can avoid the shipping cost, which has become more complex and expensive to this part of the world. I’m not sure Pro is a big advance for me over Special Edition, at least on matte, but it may be on gloss, as it would enable me to moderate the overly strong SE toning effect on gloss, apparently with the assistance of the HD curves. Decisions, decisions. And under time pressure.