Multiple PLL's in cyclone III

[Altera_Forum]

Greetings 

 I filled up one PLL in a cyclone III design and need to add another clock that is skewed -2.5 ns in another PLL. How close is PLL 1 to PLL2 and PLL3? Are they all accurate to one another or are they not to be trusted.   Thanks

[Altera_Forum]

You can set the clock compensation mode on one of the PLL's output clocks. 

One of those modes should let you meet your needs.

[Altera_Forum]

What does "Clock compensation" mean. I see it here in the PLL megawizard? can you digress? thank you

[Altera_Forum]

I would NOT trust different PLLs. Same PLL - OK, two different PLLs even if the source the same - not trustable.