Similar in design to the old BSVOG Fuji rings I used to fit they stand off a little more than the BCLSVOGs. There's no cost increase and they come in a wider range of sizes than the Kigans.
BCLSVOG on the left, Salvo on the right.
For a modest increase in price there is a more modern looking ring available from AT, in the currently fashionable 'anti-frap' style. Delta rings maybe stand off a fraction more but have the advantage that as they decrease in size they stand off proportionally less. Although I doubt it makes any practical difference I have always found the step down to the tip ring when using V framed rings like BSVOGs to look a bit odd. The Deltas make a much neater look and are not over bulky in the larger sizes. The matching tip is also anti-frap style.
10mm Delta tip