Just had a look at your style Bartrim on this website
http://www.krmas.com.au/karate.html
I have never heard of it before but looks pretty good to me mate. The Karate they teach is freestyle karate from the sounds of it which can be a very good system. Just depends on what elements are incorporated from each style and how it is trained.
If they also teach some of the other styles like Muay Thai and MMA at the location you train at I think you should try those out too after you feel comfortable with the Karate and have a good base set of skills.