At 280 and just learning to ride any saddle will be pretty painful. Take it slowly, look around here and on the net to see if you have your bike adjusted properly and your saddle high enough. I used to get alot of pain until i adjusted it properly and read a little about the proper form for riding (percentages of weight put into hands, feet, seat). It seems pretty simple get on and ride but there are alot of little things that will make your ride more enjoyable, spend some time and look around try some things you think might work and what not, then if you are still haveing problems with your saddle it might not hurt to start looking.