When you’re original SWD broke, why didn’t you get the PL 50-200 f/2.8-4.0?I had a 50-200 SWD for several years. Earlier this year it broke and I considered many options to replace it. I decided to buy the 300mm f4 Pro, and it is a stellar lens for birds and wildlife and I enjoyed using it on a trip to Spain and Portugal recently. But the weight and fixed focal length meant it spend a lot of time in the hotel and I regret the purchase. Recently I found an excellent copy of the 50-200 SWD and repurchased it. The zoom range is ideal and thus can be used in so many circumstances making it a super flexible lens. Focus speed is enough for me. The 300mm f4 Pro will be sold. I never considered the 40-150 Pro as the range is not what I need.
It gives you the same range, but is much more compact and light weight.