What Solargard tint would you recommend for the Grand Starex's front windshield?

Currently I have Titanium dark magic (magic 20 supposedly). After about 2 years, I noticed that I could be seen inside even on a cloudy/sunny day, which should reflect the outside surroundings. This, in addition to all my other windows wrapped in Super dark + dark smoke tint (yes, 2 layers).

I'm happy with how dark the windows are as they give me the black out effect to contrast the dark silver colored van's large windows. Heat rejection, well that may be another story, but then I'm ok with that for now. Not planning to change the tint for the GS's windows.

For the windshield, I'm more particular about 1) not being seen and the 2) heat rejection. Since I assume the tint faded, I would think the heat rejection is no longer as good. Tint shade is number 4. So magic/metallic would be ok. Dyed, ok lang din. Harap lang naman. Number 3 would be how dark. My max would be the magic 20 as I've been using it and have not complained about it. Minimum would be magic neutral (35) so I don't get glare.

Thanks!