yeah, i had a print out bespoke fit in the 90/s and it suggested 44c/c bars and they just felt so right from the 42's.yes much better for out
of the saddle up hilling everything.it also said 172.5 cranks so i switched to them and they feel better.
yes they do say lighter wheels are the best instant upgrade i suppose for up hilling especially.
but they can also be the largest expense.
yes and its a great feeling when you know you have really good quality brake pads.

best wishes kevin