Reviews seen to suggest that both the .72 and .95 are more blade forward than the GC .84. It will be interesting to hear your thoughts on it - based on what I've read, I'm not sure it will be your Tech replacement. If it's a modern Tech replacement you're after, it's probably got to be the Feather AS - D2?
I've got one coming over from the US. Hopefully later this week. Will report back when it lands