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Look at this thread maybe.It's not discontinued, but nowadays they're only made in Japan. I've tried quite a few stiga blades. It is decent, but mine are waaaaay too heavy, and small handles... I have the "pro" oriented jttaa versions, that's why they're heavy and so damn fast. Maybe a normal one would be a different story. But as of now, the worst blades I own.
I compare them to viscaria, ma lin extra off, intensity nct, Clipper wood, long v and few others.
Echo is 5 ply and around 75 grams.
A bit heavier at around 80 would for example be yasaka sweden extra.