The difference its the hole for the cable is closer to the body to be able to pull more. In the Cantis one is more inside the lever because its doesnt need to pull as much cable
found this - http://www.retrobike.co.uk/forum/viewtopic.php?t=115187
so guessing they are canti.. i'm still tempted though.. mount looks the same, it's the trigger that differs.. could always buy the next pair of purple v kookas and change is that £65 posted within eu..? if so please send me your paypal