I have the DP seat on mine and did two recent 300 mile trips on it and found it way more comfortable than stock, it does mean that your good lady would be left at home as their is no padding under the cowl... perhaps a two seat Monster
As JP says it could be worth getting the suspension set up for your weight and an option for when you take a passenger - if you think you're having fun now its even more fun with "fettled" suspension