Goob:
Yea your right, I can run much faster outside. It is more fun too, I mean there is a view there is something to look at and something to chase or for all I know some sexy chick can join in (Ok too much movies for me).
The one thing I realized about running outside is, if I speed up to my max then I would just drop down and try to catch my breath and would just stop. But on a treadmill on the other hand, even when I max out I slow down the speed but I can't totally stop. The bad part about the treadmill is that well its almost like running on a coushin, the treadmill base/floor goes up and down while normal ground is hard which makes it harder.
Maybe I'll run outside tomorrow, see if I actually like it or not. Thing is, my neighbourhood is full of those wanna-be gangsters. I've beaten afew of them in the past and they always come for me. Always smoking weed in basketball cour, chasing people, trying to scare kids. ...No offence, they are all native americans..ass fucks.
Built:
Thank you, I was actually going to mention about the stretching and warmups, but your article should be enough for me

.
I normally do my HIIT about 2-3 hours after my workout, Does that have any effects on my routine?. The reason is cause I have a treadmill at home and Im normally tired after a workout.