An update on the Soligor 6mm.
With more experience I may have been too unkind in my previous review.
Firstly, of course it was hard to focus - Higher power eyepieces are, and my 102SLT scope may not have the best focuser anyway. With experience and practice I can now focus this eyepiece, and use it regularly to view Saturn. Having said that it's still hard to focus but mainly because touching the focus knob creates a vibration markedly at 220X (I'm also using a 2x barlow), an electric focus may be the way to go, but expensive.
Of course there was a reduction in brightness - the exit pupil is directly related to the focal length of the Eyepiece.
Exit Pupil = Focal length of Eyepiece/Focal Ratio of scope
in my case this meant a exit pupil of 0.93mm
As for Chromatic Abberation, yes there is a slight redenning around the edges, which was probably worsened by my previous inability to focus. But now seems markedly reduced, even unnoticable.
So, I can live with my new eyepiece and will not be so quick to judge in future, at least until I have ruled out my own inexperience. I have also learned that patience is rewarded in Astronomy. In future I will not review any item until at least a month or two of use.
If I have caused offence to Soligor or users of their equipment I unreserevedly apologise.
  