Tuttle Beijing IV: Yet Another Review

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The link is to a video I made.   
The rubber is well wrapped and comes with two surface protectors
What hasn't been mentioned before in the other reviews is that the sponge has a slick covering on the side that is glued.  This confused me for a second. I tried peeling the slick sheet on the back side of the sponge and it didn't want to come off so I just glued to the shiny rubber.

The first part of the robot shows me looping FH from behind.  I tried to place the camera where the arc can be seen.    I could get nice high arcs with speed if I wanted but it took a little effort to do it.

Later when playing against an opponent, my opponent said the balls did jump out after the bounce but not like T05 does.  

When I am playing against the robot there is a time about 75% through where I am flat hitting.  You can hear the difference in the impact sound and see the trajectory change from a nice arc to just skimming over the net.  Beijing IV seemed to be more than fast enough when flat hitting.

When you see me again in the last part of the video I was hitting with a few back hands.

The facts:
Beijing IV is very soft.   Beijing IV feels softer and much less tacky than than the H3 #19.  I replaced the H3 #19  with the Beijing IV.   I think they played very close to the same and cost about the same.   Which one is best for you is a matter of preference for tacky on non-tacky and how soft you like your sponges.  The H3 #19 sponge is supposed to be about 36 degrees and the Beijing IV wrapper said it was also 36 degrees but Beijing IV feels softer.

Even though Beijing IV isn't very tacky it is tacky enough to collect dust marks where the ball hits it.  

The uncut rubber was 165mm x 164mm and weighed 57.16 gm ( my scale is calibrated to 0.01 gm every year )

Subjective Opinion
Beijing IV plays a lot like H3 #19 but without the tackiness.
What I think is special about Beijing IV is that the top sheet is thin and will cup the ball at very low impact speeds so that one can do over the table loops with just the wrist and fore arm snap.  It was relatively easy to return slow short underpin serves with top spin and place the ball in an aggressive way.  Usually that means hitting the ball over the net at an angle or deep in a corner.

Serving was easy and the under spin balls were often hit into the net by my opponent.

I didn't show any chopping in the video but later after making the video when I was playing against my opponent I tried about 6 chops in the hour we played.   I landed 5 out of the 6 and the 5 that landed didn't come back.  They were low, deep,  spinny and relatively fast.   I am not a real chopper like bogey hunter.   I wasn't that far back and I chopped the balls when they were relatively high.   I was back farther than a chop block.   

To Do:
Get some video of me playing.
Move Beijing IV to my Samsonov Alpha which is much better for looping than my Firewall Plus
Break out my IQUL SV Max for comparison.
Mount these rubbers on my cutting board and let the robot shoot balls at it and video tape the results and note the differences between H3 #19,  IQUL SV Max and Beijing IV.

Now you can view the video.  I will put it on youtube later.
http://deltamotion.com/peter/TableTennis/Tuttle%20Beijing%20IV.mp4