for years I used cutback no.1s in my match kits for latex from 2 to 8 and thought no more of it. Last year I tried outing the no.1s and had some bushes made to use the same elastics and feel that the pole is a lot less whippy (duh! :rolleyes: ) and I get fewer tangles when fishing long with short lines to the float. Also, the elastics seem to be smoother with less stickiness. above a 3 the latex is run through the 2 & 3 section. The pole is obviously shorter but that’s taken care of with a phex/dolly butt.
It may or may not suit you it’s something you have to try.
If you can’t get an internal bush made up, then use a maver internal with another polemaster sleeving it to reduce the bore size, else you will be unable to use a crowfoot or small stonfo effectively on light eleastic.