Spokes

So. Ehren's calculator gives me the following result for my rear wheel:

Hub
Halo Spin Doctor Pro Rear 36H
Right flange ø: 58
Left flange ø: 58
Centre to right flange: 19
Centre to left flange: 35
Spoke hole ø: 2.4
Rim
NoTubes ZTR Flow 29er
Effective rim ø: 600
Offset spoke bed: 0
Spoke length
for 36 spokes
Crosses Right Left Tension L/R
0 270.5 272.1 54%
1 272.4 274 54%
2 277.9 279.4 54%
3 286 287.5 54%
4 295.8 297.2 54%

And for the front:

Hub
Halo Spin Doctor Front 32H
Right flange ø: 58
Left flange ø: 58
Centre to right flange: 35
Centre to left flange: 22
Spoke hole ø: 2.4
Rim
NoTubes ZTR Flow 29er
Effective rim ø: 600
Offset spoke bed: 0
Spoke length
for 32 spokes
Crosses Right Left Tension L/R
0 272.1 270.7 160%
1 274.5 273.1 160%
2 281.2 279.9 160%
3 291 289.8 160%
4 302.2 301 160%

Four different but very close lengths or all 287mm on the rear and 290 on the front?