Yes, I try to also, but it's been a while since I rode anywhere that needed updating.
When I come across a section of new or re-aligned road, I'll ride up and down it in each direction, and turn up each side-road for 100m or so, so that the track has stubs sticking out the sides of it. I use this to tie my tracklog in to the existing roads on OSM. I've always found my stubs match the existing side-roads perfectly.