u/szantodenes

This is my mostly natural handwriting in close to normal speed. As I'm newish to fountain pens, I just started to lift the pen less and less. Still, I'm not satisfied with many of my letters. I don't want to influence your pointers, but I'd appreciate if you'd let me know what you like and dislike.
Also, I thought this exercise would be more interesting written in my mother tongue, which uses quite a lot of accents (hence the lifting of the pen I try to minimize), so letter/word legibility wouldn't be manipulated by context. TYIA!

pen: 1972 Pilot Custom
ink: Waterman Intense Black
paper: Maruman 80 g/sm dotted notebook

Dear June, thank you for being a short month thus giving me an excuse to fiddle with my GS.

I don't care for the yellowing, and I don't care for the slight downgrade in comfort. My OG non-U GW-5000 wearing its transparent outfit is still my go-to beater watch—and quite possibly will always be. Long live A. EL!

I just bought this vintage Parker rotary pen from eBay and I can't activate the twist mechanism or pull apart the two parts, using thin rubber sheets (seller stated it's in working condition, just needs a new refill).

1. What do you think could be the cause? Ink, glue-like sg, or just dirt, humidity and time?
2. How would you try to fix it? From WD40 to baking soda, I welcome any helping idea!
   TYIA! 🙏