Are many "createTimer" bad?

[rlkoshak (Rich Koshak)]

Thread:sleep and Timers are used for two very different purposes. They are not interchangeable.

Thread::sleep(x) vs timers in rules

If you want to do something in the future but don’t want to wait around for it in your rule (e.g. you have more stuff you want to do after kicking off the timer) or you may want to reschedule when the timer triggers or cancel it based on subsequent events a timer is the appropriate thing to use. If you want to wait for a bit and block the rest of the rule from executing until you are done waiting then Thread::sleep is what you want to use. The biggest difference, as @sipvoip describes, is that…

40 Timers does seem like a lot and it makes me wonder if there is a more efficient way to do it but not knowing why you have that many I can’t make a concrete comment.