Purchased my Trek Fitness 7.4 in March the owner of the LBS said I may want to consider a new saddle but, I should give it 30 days before I decided. The weather in March and early April was horrible and just in the last two weeks I have put any significant miles on my bike (187 miles in April with most of those in the last 10 days). The current saddle caused my bum to be really sore at first but, in the last few rides my bum does not hurt while having an hour to 2 hours in the saddle at any point in time. So, either my fat behind is getting used to the saddle or I have broken it in to fit me. Which is it?