I have some of the 300's in single bevel.
Get the double bevel. No question.
The good and the bad on the single bevel.
They are easy to sharpen and can get hair shaving sharp, easily.
But, the tip, with the single bevel is very thick, blunt and not sharp.
It would take a little grinding to get the tip sharp. I called Nick at Steelforce and suggested that all those heads, regardless of the weight, should have the sharp point like their phatheads or the titanium heads.
Overall, I like the head but I do not care for the tip, at all. It's blunt and too thick with no sharpness "point".
But if one did it themself or had Nick do it, putting a finer point on the head would really make it a nice head if playing around with that weight.
Frankly, if you can get a 100 gr insert, the 190gr phathead is the way to go. Phathead's rule.