Following on my original statement about print quality from Lulu, I can confirm that the overall quality of the trade books with the high quality paper is truly excellent.
I printed the book both with the higher end printing process and the standard printing process and found the difference unnoticeable. I had to go check that I had indeed ordered two different books. I think for something like the BEC, the standard printing is going to be an excellent option that has a good balance between the cost and quality.
The only element that I wish was available is having french flaps - although don’t think that many POD services offer this option. The soft matt cover however is excellent. If you have any hesitation about going down the Lulu printing for this type of book, put those worries to ease.