Well i have requested a SE535 Special edition red, but i dont think i will be getting one which is a shame, lets keep my fingers crossed.
But from what ive heard the highs are better on the Red version, and i would reccomend them on the build quality and general sound quality, if they sound anything like the normal with upgrade cable, then yes, i would get them.
In the mean time, im getting some Alclair reference monitors, 3 BA custom IEM, which i can compare, it is supposed to be more neutral, it wont have the Shure mids, but the high end should be better.
I did really like the Shure sound, but wanted to see what a custom for less than the price of the SE535 sounds like, and wanted to try out different sound signatures.
I will miss my SE535.
I also found out the it was my LOD that was messing up, not the silver cable, i have since made another Silver LOD, and it sounds great.