Hi, I'm not a professional groomer but do own 4 Schnauzers that I have been grooming for a couple of years. I swear two of them are like shearing sheep. I've been using an Andis Pet groomer, but it is just not working for me any more and I'm ready to upgrade. I need a good reliable and tough clipper. Thinking about a Oster Turbo, Oster Golden or an Andis AGRC. I could use some advise on which would be the most durable, long lasting clipper. Is there another that would be better? I'm prepared to spend about 150.00. (More if I need to.)What is the difference in the Oster Golden and the Turbo? Should I be looking for the highest stroke per minute? Seems they all come with a #10 blade. Would I need another blade? Maybe a #7? Sorry for all the questions, but I'm a little confused and have no idea what I should be looking for. Thank you for any advice you could give me.