If anyone else out there has had this table have you had any problems with it sagging? I've been trying to deal with Jessem customer service but this company's customer service is really non existent. I've had this table for 2 1/2 years. After one year they sent me a support kit that only partially fixed the problem. Called them and e-mailed them at least 20 times. They always say they will get back with me but don't. They finally have decided not to return my phone calls or e-mails. I think they hope I just go away. I need to fix the sag. If you have had this problem please let me know what you did to fix it as it is really affecting the quality of my work.