This question has now arisen, as we have several examples of the new Tower of Arts in sport versions. To try and clarify things somewhat, we have the following information from Isobel, which was originally posted
here:
Granny Isobel wrote:Back in February, in order to use up the space on the bottom of the Tower of Art stamp sheets, Colin fitted in some extra sports.
There were 20 each of the following stamp:
Falling man - birds moved
Deeper Splash
Wind vane reversed
These stamps were kept until May when Colin did a reprint for us and this time included the following:
Falling man – birds moved 80
Deeper splash 40
Wind vane Reversed 40
Some of these sports (deeper splash) were introduced into the LBE’s in May and this month we have included some of the Reversed wind vane and Falling man – birds moved
I still hold some of each of these sports and in fairness to all our collectors there will be further reprints.
We are asking Our Man in Norwich to send us a definitive sample of each so you can clearly see the difference. He will do this just as soon as he has sorted out his computer problem marrying up to broadband.
There is still some confusion regarding the falling man, as to how many are the "one bird" variant and how many are the "two bird". She is going to speak with Colin Edwards on this and get back to me (whence I will share the information here). She was initially unaware that the two versions were in existence, which is partly what has caused all the current confusion.
There are two additional sports per sheet (in addition to the ones within the sheet itself), positioned at the bottom. For details of this layout, see the FAQ item on this very subject directly above this one.
Addendum - After a suitably long period of time, we've actually remembered the question and got an answer

. So, without further ado...
Granny Isobel further wrote:Green Tower of Art stamps, 10,400 issued including 650 Falling man and 650 splash.
Falling man birds moved 1 62
Falling man Birds moved 2 40
Weathervane reversed 60
Bigger splash 60
So now you all know quite how rare the mk2 sports of the green TOAs were
