Erect Penis Angle - High Ligs?

Hi,
Brand new to the forum and world of PE, for the most part. I wanted to ask is there any correlation between ones erect penis angle and their length gains potential.
For example, does a man with a erection angle of 60 degrees have more length gain potential than someone with 45 degree or lower angle? I have read some of Bib’s posts, where he talks about ‘high ligs’ and to be honest am a little confused by some of this, the anatomy and meaning, in general. When Bib speaks of high ligs, does this mean erection angle?

Another thing if I may quickly, how soon into a compression hanging routine might someone start to incorporate alternate angles (beyond BTC and SD), such as over the side? Any links to posts that touch of this would be greatly appreciated.

Thanks.
TF