I have been using DHS H3-50 for my FH and BH in the last 6 months using TB ALC and M.Maze ALC. I prefer 3-50 than TG H3 Neo or Skyline 2 TG Neo and 3 TG Neo.. Which I used them previously.
Worked well in my serves, flick, block, push, drive loop. Although several kinds of them worked well with other rubbers which I mentioned before. Such as, my serves and push worked best using Skyline TG3 Neo on FH, my block, punch flick best on Skyline 2TG Neo on BH.. Quick FH loop and smash with H3 TG Neo..
Got more spin and control with TB ALC and more speed with M.Maze when I m using 3-50 with both blades (my opinion and William my training playing partner)
I personally love 3-50, because it fits my strokes, made me won most games against William and others than I used to since I have been using 3-50. I like the tackiness, and the elasticity of the sponge.. Got a balance in my speed and control of the game, when I play slower, or faster the tempo of the game. I can play hard effort medium and soft..
The weight for using them both FH BH on a 80gr TB ALC is better than 90gr Maze. Skyline 2 on BH will add more weight if you want to.
Now I am using TB ZLC, with both 3-50. Work best for me now. Good weight, since TB ZLC is quite light, bouncy and fast. My BH and FH flicks works better. Good blocks. Got the balance of my speed and spin in my FH loops during open up against back spin, counter looping, loop against blocks.. My backspin push, smashes and FH loops are sharper than before (according to my dad, I usually got 1-3 or 1-4 against him, last time I lost 3-4, scored 9-11 in the 7th set.) (according to William too. In a day we played 3 to 4 matches of best of 5 sets against each other. I used to win 2-1, or lost 1-2. In November I lost a lot since he uses Amultart with T80 and T05 1-3, 0-3. He dominated the matches. But since I ve been using ZLC in December, I lost 1-3, then I won the matches 3-1, 2-1 and the last time 4-0.
Overall, 3-50 works well for me with my TB ZLC. I m not a pro, just happy to play table tennis for 15 years.. Those are my personal review, hopefully it helps