Help for a corpulent bracetop trouser

I followed TRS 03 and 04 for this one, closed leg with the plus 1" waist to seat variation and the trs32 brace top conversion.

Measurements are:

Waist 49 1/2"

Seat: 49"

Inside leg: 33 1/4"

Rise 10 1/4"

Knee 21"

Hem 19"

Scale 24 1/2"

The seat angle was for a flat seat. No darts on the topside

I've done a toil in calico.

After a few goes at fitting I seem to have an excess of ~2 1/2" on the side-seam above the knee that has to be taken out 1" front the topside, 1 1/2" on the underside. Consequently i think the back darts i think end up Is that to be expected or would or does it suggest I've chosen the wrong figuration?

Any advice before I start cutting my wool would be greatly appreciated.