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Yes, almost the same result.
Without any spool, and with about 100g, the track slowly start to fall, but don't hit the bottom of the channel. Almost at the end, the track stop (something like 90% of track - sorry, this is difficult to explain because English it's not my primary language).
I will try to sand the channel to see if I get better results.

But with the spool, I got worse results. Maybe the bearings (it's very cheap type), or some type of friction on track / channel.