I’ve had the 200-500mm 5.6 for about three years and really like the image quality of the lens. Having said that, the weight at times gets to me. I’ve had multiple elbow surgeries and have tried cutting down on gear weight over the last few years. I truly love shooting wildlife and have considered the 500mm pf 5.6. The weight is considerably less but the reviews I’ve seen are mixed on the lens. It’s certainly an expensive lens compared to the 200-500mm and also less versatile being a prime. I’m really struggling with deciding what to do. The main reason for the apprehension is, I’d first have to sell me 200-500 to be able to afford the 500. Any input appreciated, thanks.