patience....get the TA down first to your target. If you are going to be using bleach as your primary chlorine source I would shoot for about 70 ppm and maintain the pH in the 7.6-7.8 range to take full advantage of the secondary borate buffer you will be introducing to the pool. Once you get the TA down you will find that your pH becomes rock stable for an extended period of time! If you are gong to be using trichlor as a primary chlorine source (which is probably not a good idea unless you have a very short swim season and winterize every year) then shoot for a TA of around 100-120 ppm.