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Well, what do you think will happen with an f/5 achro?
Regardless of the eyepiece that scope has a large amount of field curvature that all eyepieces will struggle with. Increase the AFOV & field curvature will become more apparent too.
I have used this eyepiece (different flavour but same design - same eyepiece is sold under many brands including Celestron, APM, Sky Rover & others) in an f/5 achro. Beautiful image but the edge of the FOV shows some field curvature. Not the fault of the eyepiece but because design of the scope. No free lunch here. In a better corrected scope the eyepiece performance increases too. It's one of my favourite eyepieces.
This eyepiece will not show a wider amount of sky than your 32mm plossl. It will actually show a little less. What it will have is a larger AFOV than your plossl. A 1.25" 32mm plossl will show as much of the sky as the 1.25" barrel size will allow. A 1.25" 40mm plossl will show no more of the sky than your plossl, but in a smaller AFOV. If you want more actual sky you need to move on to 2" eyepieces, whether your scope allows for these is another matter.
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