-Ride in a straight line. On the white line if possible as it does not slow you down as much
*Is that legal as you would not be all the way to the right if someone wanted to pass you
For all the races I've been in, even where there is a large shoulder, being on or right next to the white line is considered being to the right, and you are supposed to make passes in the actual traffic lane.
-Remove feet from shoes on bike sliding into T2
*Is this legal? I know that AGers are not alowed to have shoes on bike coming out of swim, but can you leave them on there?
Shoes on the pedals depends on the race. For IMNA races, it may not be allowed, but I have yet to enter any other race where I couldn't leave my shoes on the pedals all the time. The shorter the race, the more important this becomes if you are looking for faster transitions.
-Elastic Laces for running shoes
*They work w/o twisting your ankles due to loose shoes?
They work just fine. I haven't used regular laces in years for any of my shoes (training or racing). You can set them up to be pretty tight on your feet, which reduces the risk of ever turning your ankle.
-Flying Dismounts/Mounts
*What does that mean???
This means you get off and on your bike while it is moving, as opposed to when you and your bike are standing still. Easier said than done, these techniques require practice.
-Sockless on both cycling and running
* Really? Would that not cause blisters?
Sometimes. I use the LG tri shoes, and have never had problems with blisters when I ride sockless, even on long rides. For running, going sockless can sometimes be rough on your feet. A few tips: first, based on a few short runs going sockless in your shoes, you should be able to pinpoint "hot spots" where there is a lot of friction between the upper and your foot. These can be dealt with in a number of ways. I use what is called "moleskin" on the inside of my shoes in places where I need to cover up stitching, which does the trick. Moleskin is besically felt tape, which can be cut to shape and adhered to things. I currently use it on the insaide of my track/racing shoes.
A second thing you can do is creative modification of the shoe's upper. I've cut holes in my shoes, cut things away, and done all sorts of modifications to my shoes to ensure that I'll be confortable in them. It may affect the aesthetics of your shoe, but I would hope that's not a huge deal.
A third way I deal with friction is to stock up on rolls of waterproof first aid tape, and tape over sections of my feet that I know will develop blisters. I usually only have to do this on one toe for one pair of shoes, and I htink I have modified the shoe so that won't be necessary, but it has worked well for me in the past.
THe biggest thing to do if you want to race sockless is to train sockless. Doesn't have to be all the time, but often enough (at least once a week) that your feet can grow accustomed to not having socks on. Places that are hot spots often turn into calluses, which limit further damage. One side benefit of going sockless is that you have greater control of your shoes while running, because your foot is directly in contact with the shoe materials and isn't sliding around at all because of a sock. I really like that increased feel and control.
I race duathlons and like it.