What would likely be the benefits or concerns I should be aware of for this scenario... Med/Fast vs MedLight/ExFast. Both rods are closely weight rated (from 1/8 to 1/2 oz), and primarily used for tubes, dropshot, ned and t-rigs... I've narrowed down my rod choices to either the St Croix Avid X or Fenwick Aetos. Now, just trying to determine power n speed of rod... Would greatly welcome and appreciate any thoughts, insights or personal experience... Thanks! Mike