TTI/Eddy Sealing Problems?

I have heard from several people that they are having sealing issues with TTI headers on Eddy heads (unported and ported). These people either switched headers or have added a bead around the header port and ground them down to get them to seal properly. Can anyone share their experiences whether it be good or bad (especially if you have run into any problems and what you did to correct it)?
Author: admin