And Geos on here want to explain why Spod is the holy grail?...

And Geos on here want to explain why Spod is the holy grail? Understand it has higher LiO2 but are all over Li pegs deemed uneconomical? Surely there are producers leaching from a range of host pegs?
For example:
"Lepidolite (KLiAl2Si3O10(OH,F)3) is a mica with a complex and variable formula. Its Li concentration ranges from 1.39% (3.0% Li2O) to a theoretical maximum of 3.58% Li (7.7% Li2O)."

Also we may find Spod in the RC results in any case. Waiting patiently.