Line slap is the product of a poorly designed fishing rod.. Micro guides are used for no other purpose than to reduce weight.Also the TFO saltwater rods go against the current trend of micro guides that reduce line slap against rod blank. Their reasoning is to allow the leader knot to pass through easily. If you use mono you might get a few extra yards choosing a rod with smaller guides. The more guides a rod has, the better it is. Especially more in the last 10 to 14 inches where the tip action is.