In good health

 
My wollemi pine gets its anuual-ish repoting. Compared with other pines here in victoria it is looking healthy with some new growth visiable (probably related to the fact that i still "hand" water it by placing it in a bucket of shower water regularly). However it is starting to look just a little spindly and I am wondering if it is a good idea to prune and if so when? Checking the wollemi website suggests shaping is a good idea and anytime of the year, but sterile secateurs!