Which opticron eyepiece with the GS665 ED? (1 Viewer)

Hi
I am thinking of buying an Opticron GS665 ED scope for my wife but can't decide which eyepiece to get with it. In the past I have had 32 wide angle eye pieces with my scope which I have found fine (though my scope is a 77mm lens so is brighter) but there isn't one that goes with this scope - the 32ww becomes only 25x with the 665 scope.
The next one up is a lens which is 35x with this scope but with a smaller scope will I lose out on brightness too much?
I have been warned off getting the zoom as I was told it has a very narrow field of view and isn't very good higher than around 40x anyway.
Any advice would be much appreciated.
Thanks

If it,s any help,I use a HR 66 ED and I find a 28 ww or 35 ww the most used of my eyepieces. My zoom eyepiece rarely makes an appearance. If I were to plump for one I would surprisingly go for the 28ww.Hope this is of some use. Bellow.