The mold seems to work fine and without problems . so mold approved. IMPORTANT : the pieces must be improved regarding the problem of "too easy disengaging" . The pieces are much better than before but comparing with the other saddles models , we think the small round hole need to be a little bit polished or diameter decreased in order to not allow the saddle "male arrow" to disengage and to make more difficult this detachment. Please ask your people to try the other models difficulty to disengage and to compare with saddles 20. Notice: this is a very small correction so be careful with this improvement in order to not be too much harder or impossiobel to engage and disengage !!! best regards,