You want to get some 1916's or 1816's. I am leaning towards 1916's, since I believe that bow is centercut, and two since your already an experienced archer and it won't take long for you to be shooting 25.5 to maybe 26". Your doing the smart thing starting at 27" arrow. Good news about aluminums, they can easily be heated and insert removed and cut and insert put back in with Ferr'l tite. Its great glue for alums.

My wife shootsa 40lb recurve at 27" draw and shoots 1916's great.