Dear Phil.

I started out using the MP3s in this website. Then I switched to following the instructions in the book.
I don't use the mp3s with scales for warmups, instead I go through different sections of my range depending on what area I want to work which now consist of 2 octaves and a tone of full voice and the rest of the last octave in falsetto, totaling a range from E2 to E5. Each section consist of 2 octaves in average unless the exercise requires to work your lower or higher range alone like the gargling tones Chewbacka and Pigeon. That's one reason why I spend so much time on every exercise and probably the reason why I get so tired once I'm done with the falsetto slides. (Thank You Capehill) The feedback you've both given me gives me a good insight.

The following questions arise:
1.-If I keep the intense training will I improve faster or am I simply overdoing it?
For example I'm already starting to get the Falsetto slide and I haven't done more than 6 sessions. Also since I'm learning it I'll say I do from 3 to 5 attempts on each note on average when I break until I get it without breaks.
2.-Once I have reached certain level Do I cut back?
3.-Could this cause injuries in the long run?
4.-Once the range expands, should I work on the edges of my comfort zone alone?

the answer is: do what works.

work to your current level i can't answer it for you, you have to feel what is overdoing it and what is not. you need to train in a manner that keeps you wanting to come back everyday so that you keep consistent. i'm just sayin 3 hrs, i don't think i could do that everyday consistentaly, the exercises are boring!

i run through the mp3's, and take the transcending tone exercise and siren exercise a little slower. it doesn't take long and i'm improving constnatly.

if you aren't improving and your training consistently then something needs to be adjusted, maybe you are doing too much? more isn't always better. consistency is always better. you don't have to do 3 hours to get good results, but i'm sure you can get good results doing 3 hrs, but i'd rather conserve time.

listen to your body.

The problem with the exercises is that once your range starts to grow, they will take an eternity to finish if you take each to its maximum. Say you can hold a note for a minute and have a 3-octave range. That's probably 36 minutes per exercise :) I don't have that much time as singing is "just" a hobby for me.

My program:

- optional stress release
- optional 5 minute warmup, lip bubbles
- falsetto slide to lowest and back to start note on the same breath. These take probably like 20 minutes
- transcending tone, 10-15 minutes. Probably should spend that 20 minutes here instead of FS :)
- sirens, 10-15 minutes
- optional break
- singing 30 minutes

I used to do UBW but I have quitted it for now. It works but I just don't have the time. I try to do sustained SSS now and then.