Wikipedia never lies
http://en.wikipedia.org/wiki/Skegness_railway_stationIn 2006, all loco hauled services to Skegness were halted due to the weight of the locos buckling the rails frequently. Now only class 158 and class 170 trains run all the way to Skegness.
Most trains run fast to Sleaford and Boston, with Heavenhouse only having one passenger join and leave the train every day!