I don't know much about SCC, but I did work for Heath for several years. We were able to do pretty well, since my wife is very good with a buck. :-) We did work year round, however. Unless things have changed Heath has a different philosophy than SCC on this and expects you to go where you are told and work year round. I was never able to negotiate a job like Bob has mentioned. I think if I were going back to this, I might want to consider SCC, if you needed supplemental income, but perhaps Heath might be better if you are relying on this income. Just my 2 cents. Bob may want to put in the SCC perspective on this. I had some experience with SCC's instruments and found them easier to use than Heath's, although not as sensitive. This, can be a good thing, however, since you won't find as many leaks. :-) It wasn't all peaches and cream, but, overall, I enjoyed that work and do miss it, on occasions. The only thing I did not like was working the neighborhood requiring entering back yards with dogs. But, they don't require you to go into a yard if you feel like it is dangerous.