Just a photo of the store I was at and what they have available for demo.
I tried the LG FP9 on the 12th, tried the FP5 and FP8 today so will give a quick summary of what I think of the sound.
On paper I expected all 3 of them to sound similar, because they have the same sized driver, and tuned by the same company, but if I had tried them without looking at them, I would have guessed that they are from different companies.
The FP5 was probably my favorite, it's the most balanced among all 3 with good clarity and resolution. I won't call it bass light, but of the 3, it has the least bass.
The FP8 was the worst sounding, the entire sound signature was just strangely very muffled compared to the FP5 with more flabby bass. Very strange.
The FP9 will probably be the crowd pleaser, it has great rumbly bass, better mids and highs compared to the FP8.
Honestly, I feel FP5 and FP9 are on similar levels but their signatures are so different that you will likely prefer one over the other.
I'm now on the prowl to look for a good deal on a second hand FP5 set.