I'm doing IM Coeur d' Alene on June 22nd. Would it be wise or foolish to do the Boise 70.3 exactly 3 weeks before? Some say it would be a perfect way to start your taper, others say it would be too taxing. My fitness level: this will be my first IM that I actually trained for and my weekly training volume will max out at 12-15 hours. Penny for your thoughts :-)