The Karmeli alphabet has ten vowels, five regular letters (a,e,u,i,o) and five short letters(á, é, ú, í, ó)
Which are short (hátufot)
So I write: lé tmissa
You can write :lí tmissa - too, if you like. This is still a fluid matter. Is it best to use only a single form of these letters, or not. In spoken Hebrew I hear the tendency to use only one form (é)and not: bé,bí,bó (bó óniya)

It is still a moot point.