So, I decided to have a go on the lessons and acquired the book some time ago. I just watched SR08 lesson and decided to share my sight reading journey this far.
Haven't really tried to read any songs outside this material yet, but I feel quite confident with 1st position of C major. It's a great feeling to see a note or triad on a sheet and effortlessly find it on the instrument. Another takeaway is that I've started to care a lot is muting every string I'm not playing. Sometimes the process feels like uphill battle, but don't expect too fast and be kind to yourself hey.
As Tomo keeps pointing out, this series is not only about learning to read notes, but also about discipline. Somehow I find working on this material extremely rewarding. Every morning, for the past few months, I jump out of bed and start practicing. It's a great feeling I wanted to share. :)
Would be good to hear from others too!