-shms-2017-optimized.dat: matrix elements optimized using runs 1808-2239 during commissioning run period. To use this matrix, one must change the pphi_offset in shmsflags.param to 4.83E-4 rad. This is a 5th order fit. Still using non-optimized delta.
-shms-2011-26cm-monte_q2_m015_rec.dat: matrix elements to reflect KPP run findings with Q2 at 1.5% low.
-SHMS_fr3_rec__order_3.dat: ideal matrix elements using 3rd order fit.
-SHMS_fr3_rec__order_4.dat: ideal matrix elements using 4th order fit.