Sorry to be late to this thread. Just, like yourself, have had to tackle ABS after mostly being a solely PLA person.
The prints aren’t HD, (0.2mm) but I thought this might help.
I’ve tred buildtak sheets, which seem to work OK, but still warp, even with a raft. Then I found dimafix (if you’re in the UK, kora is a reseller). After applying a layer of spray directly to my aluminium print bed (no kapton), I crossed my fingers and hit print.
The results are amazing, it sticks fast until it cools, and then it shocks itself free from the bed, (akin to PLA on heated glass). Instead of the usual corners curling, a couple of the parts I’ve printed have been that the part is bowed outwards (corners touching the desk, middle lifting), but that’s probably because those were long thin parts.
The only issue I’ve had is with splitting of layers, (only on a reasonably tall print) but I gather that’s because I’m printing too hot and the heated bed is slightly too hot. Also, the printer isn’t enclosed in any way, which as I understand would help with the layer splitting.
The first picture is using buildtak, you can see the part warped quite a bit even though I used a raft and brim.
The second picture is a side by side of the buildtak (right) and dimafix (left). The dimafix surface is smooth and flat. The only places it lifted is where there wasn’t very good contact with the bed for the first layer.
The third picture shows the sides of the two parts, the dimafix one cracked partway up, presumably due to the lack of a enclosure.
