Thank you guys for insightful answers to my honing problem.
This forum rocks!
I didn't expect so many answers in such a short time!

One thing is certain - as I understand from your answers I've done more than enough strokes on this problematic razor on 1K hone and I should stop doing it before killing the spine coz it will not "even out" if I keep doing it with no mods to my honing method.

Therefore I am putting some layers of black electric tape around the spine, I guess I'll start with 3 pieces of that stuff following Glen's advice, then I'll degrade to 1 layer if I can feel the new formed edge and try to sharpen it keeping 1 layer on spine. All the time frequent marker tests in between strokes of course It should become clear by that time wheter to use x stroke or rolling x stroke with the leading heel - will proceed with a gentle rolling if warp proves too strong to attain an edge with 1 layer of tape on.
Please correct me if I am wrong in my understanding.

I'll update with fresh results.
Thank you,
Magus

PS. I'm already hunting for some cheap beater (like Wapienica) on the auctions to improve my honing technique