I have no problems with the quality of either hoe. With respect to specs, don't be too
concerned about that either, since you may not be comparing apples-to-apples. The
test conditions may not match in terms of pressure.
Either hoe should handle the 2500psi that you have with a CK27/30/35.
My biggest concern would be the subframe. Kioti has improved their subframe
for the CKs with their 2475 series. Woods makes decent subframes, but some
of them stick very far out back, which is a disadvantage.
I would prefer the one with the subframe that ties the hoe closer in to the
rear of the tractor. I suspect that is the Kioti unit.