These are the two things you should make your decision by

If the dreads get really long they can pull on the scalp if they get really long which can make you loose more hair.

Another way to look at it is that you will get to keep the hair longer, because the dreads will hold the hairs together.

Yep, your hair will dread, you will probably want to use the backcombing method because you will have the best results. The hair might slip out a little, if you don't backcomb the dreads tight enough, so make sure you do, and make sure you put rubber bands at the tips.

There are two types of thick hair

1. Thick strands- usually Asian people have this kind of hair, it is harder for this kind of hair to actually lock up, but if you use the backcombing method with a good wax, you won't have many problems. Neglect, and twist and rip will not work well with this hair type.

2. Lots of hair- people who have curly have usually have lots of it. The stands are usually thin or normal size, and the dread great. A person with this hair will have no problems getting dreads, with any method

Not at all; curly hair is the easiest type of hair to dread.

They may curl a little when they are new, but if you palm roll them a lot they will straighten out in about a month.