Tbh its more important to track the ICD of trinkets rather than only trinket procs..
that being said, i use both Satrina buff frames and extra cd, so i can track both.
On topic, if its on pull, i will never use my 2x missile procs, first of all because the extra damage(compared to AB) from missile on low stacks is insignificant, and because i rather not waste my procs fishing for 2end missile once at 6th stack.
And ye its sucks that Sha trinket is so hard to proc, better just go blindfold AT and pray it wont proc every other trinket/proc(jade/tailor) is always active once i reach 6 stacks.