well i have had the same experience as JGTR,
my torch`s 2010 and 2013 do not fly well on my 2012 vegas bar, the tips flare no matter how much you tinker with line lenghts
for the record my 2010 vegas will fly on the 2010 naish shift bar
all 10m kites
Torches will fly on the North bar and I have had someone say they prefer it but I spent a whole day in Egypt adjusting line lengths and trying everything I could to get the kite to fly on the North bar so went back to the Naish bar and the difference was like night and day.
The shop I brought the North bar from assured me it would work