Has your EP or cardiology team suggested that they will want you to begin to taper off with the metoprolol before long? This is the usual protocol because of what I explained above...you don't want to wear a Holter at the 10-12 week mark with a heart 'helped' by drugs...you want a veridical assessment of your heart's electrical health and of its rhythm tendencies, including if there are 'PACs', or if there are long pauses, or runs of tachycardia, etc.