guys this is my first post since right after i joined the forum and bought my an400k4, but i read the forums every day, i can't tell you how helpfull this forum is!,anytime i can think of a question i go to the forum and in a past thread it is usually answered,my biggest problem is instead of just going out and cranking up my burgie in cold or rainy weather i usually have to take it for a spin as i told my wife"it's the best money i ever wasted". anyway i am considering upgrading to the corbin seat and possibly the mallosi, but i am a critical care nurse very good at my job, but not much else,are these complicated procedures?