Decided to have a shave with the Black Hawk this morning.
Used the same blade as I used in the Chrome version a few days ago so the blade shouldn't be a significant reason for any perceived differences between the two razors.
Lathered up and had my regular two passes (WTG and ATG). As this was the third time using a Hawk gone was the initial surprise of how 'toy like' it feels and I was able to focus more on the shave.
Two passes and I was very cleanly shaved. I still feel that it's a rather mild razor - maybe slightly more aggressive than the Mongoose - but I have to say it's still capable of giving a very nice shave.
I felt the very slight 'drag' with the Black Hawk but to be honest - if I didn't have the Chrome version to compare to I don't think I really would have noticed. As these are rather budget positioned razors I'm also taking into account that it might just be a slight manufacturing tolerance difference between the two. Still, not significant enough to impact the overall shave.
Next shave I want to try out a Hawk head on a slightly heavier handle to see how that changes the shave.