I received a Rxton 1 Train 36° version for a friend. Hardness measured at 49° Shore-C, so 51/52 ESN. It's harder than my LAC that are measured at 46/47°. Loki can't be consistent with their sponge hardness. I boosted it and overnight it became 44° measured.
Someone on a french forum ordered a black Telson 100. It comes with a different sponge, Kunlun Sponge V, and it's blue instead of the red advertised by Loki. It's odd and it makes Loki's range of rubbers totally unreadable.
Gewo Nexxus Superselect 45° is the best I found for my BH. Codexx 52° and Loki Telson are also very very good, but too low angle for me.
I'll try Vega Europe H and Bluegrip S1 soon to ceck if they can be an upgrade from the Gewo.