Thanks for the link and it's really helpful. Overall I like a lot of what you do and think you're doing a lot of good things. The things I notice are....
1. You're cheating way too much with your left foot being so far forward when you catch the ball. It's a bad habit that's easy to get into for showcases and what not because you want to get that pop time low but you're sending a bad message to the guys timing you. You're telling them that number is due to cheating the front side and it going to throw the validity out the window.
2. In the first couple of throws it looks to me that you have too much weight settled back on your feet rather than having your butt up more to help generate momentum forward. You're last two or three throws get better in this but still I think you have too much weight going backward and now you have to really work to get going forward. Let me know if this doesn't make sense and I'll try to word it differently.
3. I like how you let the ball get deep before you catch it and transfer to the throw.
4. You can tell you got some good feet and can move around really well behind the plate. I think this should be exploited more if you can get more weight off your feet and get it more forward like I'm talking about in number two.
Now as for your question about the front side. I may be wrong on this because I don't know how to watch youtube videos in slow motion but when I hit pause as your front foot lands I'm thinking you're landing with it too far open. You're bleeding off some potential power from your core due to this. The front foot needs to be closed more and open on it's own as the body transitions through the throw.
For your question about finishing over the top I think you need to finish more going to second and not worry about how a pitcher finishes. On all of your throws you never let your right leg come past your left leg. To me this really hurts because you're not following through enough. This also seems to be leading to another problem of your drifting off to the third base side on the throw instead of making sure your momentum is still going to second after release.
Check out this video that was made by our very own Catching 101. This is a great instructional video on throwing by a catcher. Watch the part on throwing to second especially. When this guy and see how his momentum still goes to second after release. A couple of times it's due to his right leg going past his left leg as in he would be able to walk towards second after release. Also, check his front foot from the side and front and see how it's slightly close and opens because of the throw instead of forcing it open like I'm thinking you're doing.
http://www.youtube.com/watch?v...Lkt8&feature=relatedI'm a huge fan of the "T" drills and you can never do them enough. This is what you need to do to help learn how to close the front side and not cheat with the left side on getting quicker throws.
The line shuffle drill will help you work on getting more momentum towards second and should seal the deal on the front foot coming open too soon. Paint a straight line or use the foul line in the outfield. Start with you splitting the line like you would in a "T" drill. Get a partner about 90 - 100 feet away and start with ball in glove or a third person toss you the ball in your squat. Come out of your squat like you would in a game and land on the line like you would on the "T" drill but take 3 - 4 shuffle steps toward second from the power position - throwing arm up and facing back / front side elbow pointing at partner - and then throw. Once you throw the ball take a couple of follow steps on the line towards your partner.
Speed throws just helps seal the whole package together. Get a partner about 50 - 60 feet away and start with ball in glove in squat. Come out and fire a throw down to partner who is in a squat. He catches the ball and comes firing out back to you. Once you let go of the throw bounce back a step or two and get back in squat for his throw back to you. Really work on doing this as fast as you can and get your mechanics repeatable from this. It's a good idea to do this one on a painted line as well.
Hope all this stuff makes sense and if not let me know and I'll try to explain it better. Other guys will be along soon to provide some better stuff as well.
