TO ME NEITHER PLACE IS GOOD UNLESS YOU GO REAL SLOW,BOTH PLACES WILL TRAP AIR,IS THERE ROOM AT ONE SIDE THAT IS FLAT WITH NO STEPUPS? I WOULD GLUE A FLAT OBJECT TO BOAT AND MOUNT IT TO THE OBJECT TILL YOU CAN FIND A PLACE WITHOUT DRILLING MORE HOLES,MAY COULD GET A FRIEND TO HOLD IT ON A STICK AND NOT GO FAST TILL YOU FIND A PLACE.IF I HAD TO I WOULD FIBERGLASS A SECTION OF STEP UP LEVEL,THEN MOUNT IT BEHIND IT.MAYBE SOMEONE HAS A BOAT LIKE THAT WHO HAS A BETTER IDEA