Is it safe to take Flecainide 50 mg for two weeks?

Hello doctor,

I am a 30 year old male, who is a competitive athlete. I do not have any structural or plumbing heart issues. I have been diagnosed with WPW accidentally, and I am waiting for an ablation in 17 days. I am mostly asymptomatic, and I never had any extremely rapid heart rates. My resting heart rate is actually in the 40's. However, I do sometimes get palpitations and every once in awhile get a run of 5 to 7 in a row. The EP I saw in the hospital prescribed me Flecainide 50 mg, twice daily. I saw another EP, who was a much older guy, as a second opinion. He seems to think I do not need the Flecainide, and maybe not even the ablation. I do not agree with him on the ablation due to recent medical studies on WPW and how ablation is recommended even for asymptomatic patients, especially athletes. My question is regarding Flecainide. I have not had any palpitations since I began taking it a few days ago, but I want to make sure this drug is not putting me at risk for creating a dangerous rhythm. Reading case studies and medical journals, it seems there is some risk. I have not been known to go into AF, and besides palpitations, I am asymptomatic with WPW. Do you think Flecainide at this dosage is safe and reasonable for the next two weeks, until my ablation?