Paver Sub Base question

[Mark and Kim Smith]

I'm finally getting to a paver job I've wanted to do for a long time. I picked up a few yards of Class II base ( I guess it's also known as 3/4 crush with stone dust, etc. ) Assuming the grade is firm ( with clay like soil ), and I lay a bed of approximately 4" thick, how much can I expect that to compress down to? 1/2", 3/4", 1"?? Reason being, if it'll compress, say, 1/2" then I want to lay it at 4 1/2" to get my 4" compacted. I'll be renting a 5 hp reversible plate compactor. Do you need any more info before giving a guess?? Thanks in advance!!!

 

[MC]

Most what I have done gets to about 2-1/2 inch from a 4 inch, I only wet enough to control dust, not very much water.