Hanging for achieve my goal

Hello everyone,
First of all I apologize if my English is not perfect, but I am not a native speaker.
A few days ago I decided to get into hanging world, so I bought a vacuum extender from Ali and I started with 2 kg (around 2.2 lbs) for 2x20 min.
I’ll follow this routine for about one week then I’ll try to add more weight following and add one more set for 1 hour workout in total.

I’m starting with BP 16cm and my goal is my goal is to achieve BP 19cm.
I will update this tread with new sizes next month.

Should I continue with jelq?
Any suggestions?

Thank you in advance