There are various versions of this dance in circulation, which tend to differ in the length of the strathspey and the reel parts. 

See:

<<ddd:Foursome and Half Reel of Tulloch, The  #7542>>. (32 S + 32 R + 64 R)

<<ddd:Foursome Reel  and Half Reel of Tulloch, The#20860>> (32 S + 64 R)

and  <<https://my.strathspey.org/dd/issue/2759/|issue 2759>>.