Using tick_multiplier with a start value may give unexpected results.
start=150000000 digits=10 end=9999999999 interval=10 tick_multiplier=30 timestamp="2016-04-18 21:00:00" flat=true
As the start value is essentially the number of “ticks” to add to the counter if you use a tick_multiplier value you must divide the start value by the tick multiplier to make the counter show as you might expect:
start=5000000 digits=10 end=9999999999 interval=10 tick_multiplier=30 timestamp="2016-04-18 21:00:00" flat=true