I can and have done that for different task types already. What I am trying to do is completely turn off tooltips for specific tasks. I'm not sure that's feasible. Here's the latest version I tried - all selected items are as required, just am unable to turn off the tooltip for some tasks. Not setting anything in the tooltip template causes a small, empty tooltip to display.
xx = $(z).find(
// a class I added to a span inside the wrapper div in the task template
xxx = xx;
// there should only be one item in this array
// this isn't working