Some people have already had locolouise's case thinning mod on the 15400 and reported it feels as good as gen. Can't find the posts but quick search will reveal it. With his mod, could be considered a first class rep with the V2J version (rather than the v2) due to better tap etc. on the blue but white is still quite far off apparently and some much needed QC is still needed. However, even with loco's mod, still not super rep status imo.
I think the same but lets wait for more feedback.