Having heard James' FX700 for a while, I can understand now why he puts the EX1000's timbre above the FX700. The EX1000 simply does more instruments better than the FX700 though the FX700 is still better in acoustic guitars and the HJE900 still puts more expensive IEMs to shame with its timbre for electric guitar and drums. I have also updated my impressions again after figuring this out.
There are some instruments which I have not much experience listening to in real life i.e. bassoon, cello, etc. so I'm not in a position to comment much on them. However, I can say I'm fairly experienced with being around guitars and even keyboards / pianos and drums.
Thanks again James for helping me out with the loaner units
I didn't listen to electric guitar on the HJE900, but I wasn't impressed how it reproduced drums at all. I think e-Q7 and FX700 have better quality bass.