Congrats Sergej,
have worked 4 times Antarctica with QRP 5 W. 1st in CW at 15 meters (8J1RL in 2008), 2nd and 3rd iin CW and PSK 31 (DP1POL in 2009) but both at 20 meters and 4th was in CW at 40 m (R1ANP in 2010) First and last are with indoor antennas but 2nd and 3rd with a 2 x 25 m doublet up 9 mtrs.
My ODX was also worked with indoor to ZL3RG in PSK31 and some other digitals at 30 m .... Since yesterday 229 worked DXCC with 5 W (192 confirmed by LotW ans 200 confirmed by HRDlog.net) The new one was Chad with TT8/F5RQP.
Hope i can scratch at the 300