I was testing it on echo commands with an $time function:

and this were the results:

23:29:34 *** Jullie hebben 70 seconden tijd ***
23:29:53 *** Nog 50 seconden.. ***
23:30:13 *** Nog 30 seconden.. ***
23:30:28 *** Nog 15 seconden.. ***
23:30:38 *** Nog 5 seconden.. ***

Code:
test {
  .timertrivia_0 1 1 .echo -a $chr(36) $+ time %channel 4***10 Jullie hebben4 70 10seconden tijd 4***
  .timertrivia_1_1 1 20 .echo -a $+ time %channel 4***10 Nog4 50 10seconden..4 ***
  .timertrivia_1 1 40 .echo -a $+ time %channel 4***10 Nog4 30 10seconden..4 ***
  .timertrivia_2 1 55 .echo -a $+ time %channel 4***10 Nog4 15 10seconden..4 ***
  .timertrivia_3 1 65 .echo -a $+ time %channel 4***10 Nog4 5 10seconden..4 ***
}


And why should I use the -h function for it? It's only take more cpu usage for just 5 timers noway.

Hmm the server is not lagging @ all, with just some 10 users on an 100MBit server. (or I'm sleepwalking?)