I've been reading up on the Rapala X-rap magnum 20 & 30 and they sound impressive. They are about 2X the price of Stretch 25/30's, but supposedly you can troll up to 13 knots without them fouling. I know with stretch's if I get more than about 5 mph, they will foul on me. Has anyone used them with success - especially going faster than 5 mph?