I reckon you may be a little mixed up there, my learned colleague.
The CG entry on the Takeoff Ref page is to provide a takeoff Stab Trim setting, but the Perf Init CG is a CRZ CG and in turn affects the calculations of the buffet margins and therefore Optimum/Maximum Cruise Alts displayed on the CRZ page.
You can interpolate a Top of Climb CG from your trim sheet.