#1) Try 5:3:1 - pine bark fines:Turface:peat for lettuce & greens if you think you'd like to try Turface. Truthfully, I'd still stick to the perlite @ 5:2:1 for lettuce & greens & skip the Turface. I only use Turface in soils that I need to keep stable (from collapsing quickly). Perlite is soo much cheaper & lettuce is such a fast & easy crop ...

#2) In my raised beds, I used a mix of approximately

5 parts pine bark fines
2 parts sphagnum peat (or sedge peat could be used, too - wets easier)
2 parts Turface
1 part fine sand
You'll need to add quite a bit of N the first year to compensate for N immobilization, but after that, a 24-8-16 fertilizer with the minor elements will give great results (if you even need it - I have only spot fertilized certain plants & I think I'm in my 7th year with these raised beds).

You can see the soil is very rich & has excellent tilth:
{{gwi:3924}}

Thanks Al
The reason I do not like perlite is that it "moves" to the surface. It is cheaper, but the MVP is $7.00/50 lb. bag here and I think I will for sure use it in the raised beds for next season. I am getting a load of wood chips hauled in this fall and plan to let it rot over the winter. It is more or less free. I will also use worm castings as they are available here for about .10 cents a pound which I think is fairly cheap.
Thanks again
1EyedJack and the Dawg