Hi Paul,
For the scout groups you could try a zoom eyepiece, easy to use, don’t have to worry about constantly changing eyepieces. A lot of people here recommended the vixen zoom in other posts.
As for the astronomy club you could try comparing your plossl eyepieces to orthos or other type eyepieces of the same focal length (just a thought).
The classifieds here are a good resource for eyepieces if your not in a hurry also.
Cheers
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