Mark,

It appears I'm a 2.8. Definitely there is some space for improvement :-) The good thing is that any additional 1km/hr to my average speed will make a huge difference. Now i understand how much faster i should be able to climb! The bad one - loosing weight will have negative affect on the results :-(
Playing with the numbers - to be a "4", i will need to improve my speed by 50%.

BTW, if I'm 2.8 what are those that i pass???