Nothing better than braid. Nylon gets sticky inside the tube and makes it difficult to adjust the required lenght you want to use. Sometimes, especially in structure you need to quikly adjust your line length. But also when using the dipping method. Braid is soft and quickly adjustable.
Need a thick diameter braid for tube rods. Jerry Brown the best if you can get it.
Roepstok usually not build for casting. The Twin Action or Kajak version can be used for casting, but not the Big Shot. All Blue MArlin types of roepstokke.