OS Giken ratios: 2.695, 1.703, 1.236, 1.000, 0.826
Standard ratios: 3.214, 1.925, 1.302, 1.000, 0.752
Should be able to work it out based on this alone.
I don't see why 1st should be bogging down in the OS sets. It appears to be a lower ratio.....or am I working it out the wrong way?