The more maidenhead grids you collect, the more difficult it gets. While I’ve collected enough grid squares for the 50 MHz VUCC via LoTW I’m still in need for the last 17 on 144 MHz. It should be doable all via tropo using SSB or FT8 (of Meteor Scatter during the september Perseids shower).
Anyone active on 144 Mhz in these squares: JO00, JN29, IO84 or the German-Poland border (JO71, JO72) and willing to try using a sked? These grid squares should always be workable if you have a horizontal antenna system.
Update 19 juli: IN98, JN26, JN39, JO43, JN58 and JO66 added. VUCC score is now 95/100.