I did a test. Check it out.

I kept reading in the Forum about how you should change the darkness setting ing the LS Control Panel because it makes your labels darker. So I did a comparison.

I also heard about this Double Burning idea. So I tried that too. This is what I got:

French Mix: 

Default darkness(not Enhanced):http://picasaweb.google.com/lh/photo/AzS2g7s57alxmGgDU6vt9g?feat=directlink 

Enhanced darkness:
http://picasaweb.google.com/lh/photo/g2Rvlq_QLvwI1m04q-f9rg?feat=directlink 

Enhanced Double Burn:
http://picasaweb.google.com/lh/photo/AE63oaiUp13DN31xsHVFHg?feat=directlink 

IO Echo 

Default darkness(not Enhanced):
http://picasaweb.google.com/lh/photo/Q1TBn6QCDbdz3mW-9HOxjg?feat=directlink 

Enhanced darkness:
http://picasaweb.google.com/lh/photo/FQA-WSs-B-Ofu-Yi_pqDmA?feat=directlink 

Enhanced Double Burn:
http://picasaweb.google.com/lh/photo/Qnb3sTda1NHD_khanlyXsg?feat=directlink 

Yeah. I am way satisfied with the Enhanced Double Burn. I'm gonna do all my labels that way!

I did a Triple Burn. I don't like it as much. It is marginally darker than the Double Burn and the lines show up a lot more.

Enhanced Triple Burn:
 http://picasaweb.google.com/lh/photo/LeqvKfqRm2mmTtnLQ-P0Lw?feat=directlink