Rapala magnum 20 in bonito is an awesome bait. Most of the fish I hooked in Baja last year were on the bigger rapalas and hydromags. They work no problem from the kayak. When you see your rod tip bouncing up and down in a fast manner, you definitely know you have enough speed to make the jig swim. 3.5 to 4 mph is plenty. When I was in abreojos 2 years ago we made a pass over a reef holding broomtail grouper in one of the local pangas. The captain saw marks on the FF and slowed the boat way down for the next pass around. We were almost at idle speed when the Magnum 30 got pounded. 80 lb broomtail grouper hookup. How much line that is out plays a factor with how they swim as well. I have a lot of faith in the Rapalas and hydromags because I have been so successful with them.
One other one to try is the the Bomber. Plastic lip is a little wider so you are able to get by with slower speeds. They are the Bomb (no Pun intented )
http://www.basspro.com/Bomber-Saltwa...duct/10208093/