A883 2nd & 3rd question

Hyup, youre in the right area.But I think youre too far in.It doesnt matter to be too far in,it just doesnt help at all.If you look real close, between your marks and the front edge of those flanks, up near where the flank turns and becomes the point, you will see the normal wear areas. These normal wear areas are very short,being about .100 long. If you get the light in there just right you will see them.Where the shiny,worn part meets the virgin flank, thats where you make your trough, from the bottom of the flank to the top.You need to bring that trough forward to cut about 1/3 of the worn part away, and to a depth of about .010 But you have to leave the very front 1/3 alone. This way, after you cut the worn 3rd gear clutch teeth away, the newly engaging clutch teeth will lock behind the front uncut parts of the teeth and end up in the troughs you cut, where they will lock in, and no longer jump out on closed throttle deceleration.
Make sure you are cutting the coast-side flanks,and the matching coast sides of the 3rd gear clutch teeth.Instead of cutting the entire flanks back on the clutch teeth, you can do the same to them,cutting the back 2/3 of the face,back at an angle. Dont get upset if during the trough cutting, you cut the adjacent flanks. Just grind your disc a bit smaller in diameter and keep on going. Sooner or later it will be the perfect size.
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Is this the 3-4 sleeve thats giving you trouble? Cause I cant see anything wrong with those flanks. How about a couple more pics, turning the sleeve about 15 to 30 degrees in both directions, and a bit less glare if you can.And make sure you are showing me the 3rd gear side.And maybe a pic or two of the 3rd gear clutch teeth.