I bought 2 sets of k blocks from woodcraft... but they were not Bessey's
they were woodcraft brand.. one set came with clamps (bessey clamps
branded woodcraft) the other set I bought so I could do more than one
set of doors, or drawers at a time.

They were useless as they were not like the k blocks...
Well, I was really annoyed, and finally I thought about it.. I've had
them years and haven't used them much because of the problem.

I just cut them down to look more like the bessey's on one side..
See this link you'll notice the clamps did not come close to each other.
Now they do... if you were dumb enough (like me) to buy these... this
simple mod makes them useful.. you only need to cut one side to make
them useful.

if you cut a second perpendicular side, you would make them useless.

See: http://imgur.com/a/wLzRs#0
--
Jeff