You can't beat a constant chord wing for ease of construction and flyability especially when it comes to landing. If you want to try a tapered wing, I have attached two models I have designed in the past with tapered wings. The orange trimmed plane has a taper of 75% and the Macchi is 66%. I really can't tell the difference exept on landing. I have to keep the speed up a little more. Good luck with your design. Dan.