I have to agree that holding is indeed the most dangerous part of a breaking seminar. After you get kicked in the fingers a few times they sort of just loose all feeling.
Some shotokan groups break; as well as some shorin ryu groups and some shito ryu groups. And some of those groups require succesfull breaks for higher ranks.
Welcome to the forum. You might try putting a feeler thread in the karate area of the forum. There are some active posters here who train shotokan. I find that tekki shodan became more alive for me when I started to see applications.
As you develope as a martial artist most of us learn to do techniques from both sides of the body. At some point in time if you break you should feel confident enough in your technique to be able to break from both sides. For the nidan test breaking on both sides is required for us. Some shotokan schools do break.
There is some interesting talk currently going on in the Korean forum here about breaking. I know some Japanese/Okinawan style schools break and some don't. So I am curious to see what is the general opinion here.
You don't want to look at my work table then. I can find anything on it, (well that Shadow hasn't played with), in half a minute. But it sure doesn't look too neat.
I really wouldn't recommend using the wall as a makawari. The easist to make striking pad is to take two heavy washcloths sew them together and stuff them with dried beans or sand.
Can you tell who comes from schools that break and who doesn't ? People either love to break or they can't see why in the heck anyone would want to assault a perfectly good piece of wood that did nothing to them.
Make sure you do allow some recovery time or you will run into nagging little "overtraining" issues. A bit of stretching every day can be very helpful. Don't stretch hard every day. And daily mental reviews of your forms is really invaluable.
I got carried away when I got to the part of the kata where you do a crescent kick into an outstretched palm. I did it the first time in Heian Yondan and later in Hangetsu. You see I can really get into doing kata.
My first break was a hammerfist break. I was 8th kyu at the time. I will never forget the awesome feeling. I still have the board actually. The break I had trouble with was a knee break. There are some times when ice comes in really handy.