Originally Posted by
traderman
If you think about it I'd like to know if you are able to notice much difference with the shimano vs tektro calipers.
He upgraded his rims (and braking surfaces, strength of rim) immediately. There's a chance. If he upgraded his calipers, I'm guessing new/different brake pads came with them so that's another change. Hard to tell which upgrade caused the greatest change.
Remember - brakes aren't for stopping - they're for slowing down.