Thanks. Very helpful 
Fixed the photo
It is a lot of fun 
Thank you.
I saw the 山繭ダビング , Mountain Cocoon Dubbing listed in the link to your 普通毛鉤 ラストホープ (Last Hope ?) kebari, and wondered with it is. [quote=“todoroki34, post:16, topic:167”]
It has thick fibers and shine of glass
[/quote]
A natural ice dubbing. 
Getting back to the original question, I have not used anything larger than a size 2 nor smaller than a size 32.
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60% ------ #14~15
30% ------ #12
8% ------ #10
2% ------ #18
Fishing spot is a place like this
There is an increase and decrease in the amount of water according to the season
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I go down to about a 20 or 22 but only for zebra midges because they are tough to pass tippet through while on the stream but I did buy a tippet tool I bought from The Fly Shop. It holds the fly at the right angle and you just pass the tippet and through. No magnifying glass or anything. If you are looking for one, I don’t know what they are called but it looks like a little black box and has a magnet to hold the fly at the end. I think it costs about $12.00 bucks but well worth it.