I have a 380 since they came out, have never had an issue. I have taken 5 deer with it. My son has a micro 355 and has had no issues with it either. I have had to call the company once and that was for a string for the crank a roo. they had it to me within 2 days. Would I go bigger no as I don't think is necessary . If I had to do it again, would probably go with the micro 335.