composite block warping

[Ron Nossaman]

>   The block was tighter than most new blocks I
> encounter but not jumpy or overtight.  It was not hard
> to control the movement of the pin.  I liked it.
> 
> Do you exercise some humidity control on your blocks
> right up to drilling time?  
> 
> Bob 

No, not at all. It's at whatever the shop conditions dictate 
at the time of drilling. I make up the blocks one or two at a 
time, for whatever is in the shop that will need one, and they 
sit around for a month or three until they get installed. No 
special treatment. If they needed special treatment, I'd be 
using something different that didn't. I use the same 6.8mm 
bit I've used for years. I've (second pass) drilled dozens of 
blocks with it, both Delignit, and in recent years the 
composite, with good results.

Ron N