Some advice.If you're practicing using poor technique then all you do is get better at doing it wrong.
1. Find a group that casts and join it and learn from someone who can point out what you're doing wrong.
2.Get some videos.Ron Arra(former US Champ), Neil MacKellow former Brit Champ & and UK adviser to Penn UK),John Holden(former Brit Champ), Nick Meyer(Breakaway Tackle)all have videos.Also Peter Thain,current world record holder with spinning tackle, has a video out or soon will.
If using a "full unmodified cast" you may find it difficult to use it fishing because it requires so much"clear space".
The Nick Meyer video demonstrates a cast known as "Uni-Tech"(I think)it is capable of delivering tremendous power but doesn't require the clear space that the pendulum does.
I'm pretty sure that Phil Hyde,UK, who teaches casting in the UK developed this cast and I can tell you that it will"lay some line".
While "regular" casting doesn't require much in the way of specialization the hi-power delivery of the power casts can be not only dangerous(breakoffs) but can snap a rod not built for them like a matchstick.
Not trying to discourage you but just trying to prevent harm and disillusion.
If you have the free time you might want to go to Crisfield,Md this coming weekend for the Sport Cast USA event.A lot can be learned just through observation and questions are usually welcomed with the correct timing. Good Luck. Neil