Re: Different Generations uniforms?
I believe the aborted uniforms were used for one day of filming, infact possibly the first day of filming (at least the first where someone in a 24th century Starfleet uniform appeared), see below
All though the quality is horrendous in places, you can clearly see La Forge wearing the uniform 17 seconds in. One could theorise that this particular scene was cut because they never went back and reshot it with Geordi in the normal uniform.
Is it just the poor quality is Riker wearing a Gold uniform there?