aluminum spine help?

[Ratatat]

Just wondering if any of you had any suggestions on where to start.  I am shooting a Bob Lee TD recurve, 50# at my 28" draw, fast flight.  I would like to keep the arrows at least 29" w/a 125 or 150 head. Thanks in advance for any and all input.

[JRY309]

I would try a 2018 with a 150 gr. head or the 125 gr. head,your bow is cut past center and usally take a slightly stiffer spine.I would start alittle longer and tune them to you and your bow.