To me they are very forgiving, but I haven't played the XHots or G-series so I'm not sure if my opinion helps.
I can tell you that the Speedblades are more forgiving, if that helps. They are in line with something like a slightly more forgiving Wilson Ci11, from what I could tell - still securely GI, but closer to the "crossover" type club than most GI irons.
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