would be classed as a junior and yes you should be able to use it as long as your clocksetter knows how to set it as in our club our old clocksetters didn't know how to set a benzing but unforunately i am now the clocksetter
t2 is nearly same as t3 but if you strip the t2 clock before printing times off you lose all data where as the t3 you can print off the last 50 timings with some playing around