I detangle in the shower which tons of cheapie conditioner like VO5 on a regular basis... and if I'm really washing my hair, like using shampoo and the matching condish, I will use that conditioner. I use a Wide tooth shower comb with rounded ends of the teeth b/c I have another comb whose teeth scratch my scalp and break me hair off... so rounded teeth is the key. I start from the bottom and work my way up my hair whilst under running water...
The amount of hair I lose depends on when was the last time I detangled... if I haven't washed in a week, I lose a small dogs worth of hair... (J/k, but when rolled into a ball my lost hair is about the size of a quarter (coin))... If I co wash every couple of days I lose a few hairs here and there (all shed, non broken)
This is my after shower detanging method
http://www.youtube.com/watch?v=qmtRjIgg_lE
this is the time I apply leave ins... I found apply some hair oil then combing makes detangling ssooo much easier b/c the combs glides through...
In this video I am like 5 months post or so. I dont really keep track of when I get relaxers.
HTH