We have decided on an Animas Ping pump for my just-turned 4yo son. Does anyone have recommendations regarding the Contact Detach, Inset, or Inset 30? Which is the least painful on insertion? Which is the most comfortable for the duration? Are plastic cannulas all that likely to get kinked? Are straight cannulas all that likely to get pulled out? Which would be the easiest insertion to do with a small child? Any other considerations I'm missing? Thank you! This forum is always a wealth of information!