I am wanting to buy a new trimmer this year. I was looking at the Redmax, specifically the TR2300 S. On the site it says it is something like 21.5 cc. Is that enough? Would the BCZ2601S Strato-Charged be a better choice, with like 25 cc? What is the advantage of the Strato-Charged engines? We have a very good dealer for these over in Wichita, about 40 mins away, so that is not really an issue.