Plarail TOMY Thomas NEW RELEASES

I've just unpacked and tested my two new E233 Shonan Colour trains with "special connection" couplers (released: June 17th), coupled them together... and find out that they have serious issues with some Plarail track elements:

• they had trouble (almost derailed or derailed and back-to-the-track-again situation) at R-28 Double-Track Turnout
  
• the 1st car of the 2nd train sometime swings pretty badly on the R-10 U-Turn Track, and
  
• it cannot climb the R-18 Slope Elevated Curve Track Set. 
  

I even tried to slow it down (using low speed on RC instead of it's fast new 1-speed-motor), but the result is always the same:







So here is a general remark: Caution! Trains with the "special connection" can only be used on simpler layouts.