I ride my bikes quite frequently and need to use the brakes slightly harshly (because of the traffic light changes and cars at my front) as I approach some gradients worth 40 degrees downhill. My regular commute culminates to approximately 4 miles (with gradients and 5 days a week) and 0.25 miles (with gradients and 2 days a week). I have used simple tuning to maintain the v-brake positions along my front and rear rims and cable tensions for the brake cable (by adjusting the nuts near the brake levers). However, it seems that they don't stay put for more than a month or two. Additionally, I noticed this morning that my rear brake pads are almost worn out (broken and cracked edges). My question is, how do I determine how often the brake pads needs replacements? It would be fantastic if someone points suggests any side-effects such as brake cable wire damages and replacements etc.
Also, I recently puchased this set of pads with housings. Does anyone know if it is any good? My current brake pads are naked i.e. without any housings.
Thanks a lot!