Some implements should be snug, some need a little slop. You also need to check the snugness over the whole range of travel of the 3-pt hitch up and down. It's possible that snug at one position is too tight at another and causes binding. The stabilizers should never cause binding, as that will be bad for other parts of the 3-pt linkage.
While the OP's message is cryptic, my one liner response would probably be "they are not supposed to be very tight".
The other important thing, that some people completely miss, is that the stabilizers should never go into compression. They should check sideways motion of the lower arms by one stabilizer (the one on the opposite side of the motion direction) going into tension. When this happens, the other one should go slack and *not* compress. None of these designs, whether turnbuckles or telescopic/pin stabilizers, are capable of supporting loads in compression. Sooner or later something will break.
Mentally, you should visualize them as chains. You can't push on a chain. It needs to do its job in tension. Only one at a time can be in tension.