That sure explains why Vietnam is so darned difficult, even from my HL1ZIX locale, in Korea! We're not THAT far away. And here I figured it was something to do with geography.
Funny, I was thinking the same thing about your qth I see a South Korea station spotted rarely on DxMaps or DxSummit. I'll email you...maybe we can work out a sked.
I'm on now, and we're almost in the zone. I would need to turn my antenna, though (armstrong rotator). Shoot me a message here, if you can in the next hour.
Also...I need to update my reply...I just had a great, but short QSO from YC1DTE in Indonesia at a leisurely 15 wpm. So. the QRS DX is out there.
You will find lots of 12 to 18 wpm code, stateside and DX, old novice area, 7112 ish to 7118 or so. hope to hear you then, 73 Rich