There is no metallurgical difference between Murray Carter's Stainless Fukugozai series and the High Grade series. It's only the level of finish and handle materials that are different. The special edition Chef Knives To Go gyutos included...
This is all correct EXCEPT, the higher "level of finish" changes the geometry. In my opinion, it isn't better. It's not bad but it's definitely not better.
Haha. NOPE. At least not yet. That would definitely be a major pain....did you ever have that handle taken off your 270mm...?