I don't know if I am unique in this but I hate hills or any momentum steelers - such as tight curves - stop lights - road crossings etc on MUP's - some people absolutely love it but it represents the only thing I don't enjoy about biking - I love to push it and keep pushing - and push harder the next time - it is an addicting feeling - I NEVER get that with hills - but some people do - one of my colleagues even does hill repeats - the only time I would repeat a hill is if it is the only way I could get back to the car - I know I will never win the TDF because of my weakness but I can delusion-ally win the Time Trial events every time I ride - my wife always scores points for a close second