A summer setup is about getting speed and keeping it. If you have abrupt angles you're going to loose speed. If you're drop in is super steep and then flat and then your kicker is steep cheese wedge out of the flat it's going.
You can make your transition super smooth by cutting the curve you want out of plywood and then building the ramp by throwing 2x4s across. Allows you more freedom to dial in the perfect shape. Hell you could build a roller if you wanted to. Same with the takeoff. If your take off is to steep you'll feel that sudden change in angle. You could make it mellow or build the side of the kicker out of ply and create a smooth transition that goes from flat to the top of your take off seamlessly. Just because there's a curve at the bottom of the tranny doesn't mean you can't wedge the top part. You can have a smooth curve and then straight line the last few feet for that wedge kind of ramp.
If your drop in is already built but needs some more transition you could easily add some. Pull off the ply in the that area, cut a plywood transition that fits what you need. Screw it to your existing drop in then frame out the 2x4s. Throw plywood and surface back on top and you're in business.
Also, go with the grain when bending the ply. Half inch will bend no problem if you fun it sideways but could snap in half trying to go lengthwise.
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