Today I tried the Loki Rxton 9 for the first time. I swapped the Fastarc G1 2.0 for Xiom Vega X 2.0 on the BH, which added 2g, and the H3 prov. BS H41 for Rxton 9, which added 8g, so my setup is now 195g. It's not a problem, I'm used to such weight. Actually I felt the particular H3 was somehow sub-standard, the sponge was softer than declared.
The swap to Vega X is fine, the hardness is very close to the Fastarc G1, very slightly less than Rakza X, which I liked a lot too. I like all of these three on the BH. The top-sheet of Vega X is closer to the top-sheet of Rakza X, feels more elastic and a bit grippier than Fastarc. The Fastarc, was pretty cool for blocking for me, kind of important actually, and luckily I feel OK with Vega X too here. I don't regret buying it so far.
The Rxton 9 looks pretty supreme quality, I must say. The top-sheet is nicely elastic, pimple structure visible, but not overly thin. Reasonable tackiness, I guess it will go down a bit. The sponge feels more elastic than H3 prov. now too, but that is perhaps unfair, because the H3's booster was off, and Rxton 9 got 1 layer. Feels very good on harder spins, also sound is good there. Majority of players around me are not used to these rubbers, they consider it too slow and requiring to much power, and recommend something else to me. That is partially true, also in the match there is often not enough time to bring the power. But when it is brought it, these rubbers feel better to me, than rubbers like BlueGrip or Dignics, everything is converted. I know it's honeymoon, but so far in this family of rubbers (H3, B2, Nittaku H3, DFVP - dense sponge, tacky or semi-tacky), this is the best for far. Cheers.