. They have never beaten a clean Zhang/Zhang or Petrova/Tikhonov, except for at the 2006 Worlds with Petrova/Tikhonov, every other time that pair had to make mistakes to lose to them. They have also never beaten a clean Savchenko/Szokoly as far as I know.
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Your description is not quite right. Pang & Tong did not have the consistency of S/Z, TT/MM, Z/Z and Pet/T. They haven't done lots of clean programs. So I don't know how you can draw the conclusion they were unable to beat clean Z/Z and Pet/T. If my recollection is correct, they lost only once to S&S at 2005/2006 Grand Prix Final with a horrible performance. BTW, their LP at 2006 Olys was not as clean as you described. Tong singled a 2A, Pang's 3T was downgraded.
At 2007 worlds, many of their non-jump elements such as sbs spin, combo spin/lifts were graded to a lower level, that's why they only beat S&S by 2 points in LP.
Technically speaking, P&T's biggest weakness is their sbs jumps. Tey did four close-to-clean programs for their last two competitions(4cc and worlds), which is certainly an encouraging sign.
No, I don't believe they will be able to dominate, but the top three are more or less on the same playing field these days. Here's my impression of the top three:
From the practice video, the transitions of Pang&Tong's new program are much more sophisticated than any of their past programs, and the difficulty is sort of on the same level of S&S'. Pang & Tong are obviously focusing on utilizing dancing elements for those connecting steps, which suits their style really well. Looks like they will also use some innovative lifts from some of the entrances I saw on the tape. So it's going to be a step forward for them next season. Their biggest weakness is still sbs jumps and inconsistency.
S&S are always an exciting team to watch. Their transitions are very original and difficult. They tend to use 'acrobatic', 'big trick' types of transitions in their programs, which contrasts with Pang & Tong's lyrical style. It's going to be exciting to watch those two teams battle out if both skate clean. However, they also have the problem with consistency, especially sbs jumps.
Z&Z has the most difficult sbs jumps, however, they were unable to nail any 2A+3T last season, will this season be different? we shall see. They are definitely capable of incorporating more complex transitions in their programs.
The other top pairs I'm looking forward to seeing are D&D from Canada and V&M from Ukraine. Both team can make a leap in the following season, but I'm not holding my breath on their ability to nail clean programs.
The new Russian team K&S are overrated, IMHO. Many of their elements are sloppy, and the choreography of their last season's LP was extremely simple.
Whom else should I expect more from next season?? Yeah, C&O and NNN&T from U.S. I love C&O, but am not confident whether they'll be able to develop a consistent sbs triple. NNN&T are exciting to watch, but they also have consistency problem, plus they don't skate as one.
It looks to me pair skaters can go on and on and on... New teams are hard to break through... Think about it, since 2004/2005, only S&S have developed into a top-tier team.