The theorbo and its tablature

I noticed that the tablature for theorbo is different to the one I am used to see. I know there are different kinds of tablatures, but the one chosen seems a bit difficult to read.
The ones I have seen the most have 6 lines for the fretted part and notate the unfretted bass notes just by its number, from 7 to 14 (from G2 to G1), this way you save space and don’t wander too much in a 14-lines tablature.