well mine is off and i am #$%$?. and i measured that line .
I decided to opened my ramrod groove to hide a bit of the offset
i guest the rest will be eye balled, but i think a know where the problem arise , when i made the channel the wood flex more than i thought it would.
I don't know if i will everrrr get it . I am so pi&*(&).
Sorry just felt good to hair out a bit. Went in the search section gave me good pointers if any other tricks so welcome.