I have used the short, open end, spline, Gorilla nuts for many years, racing, street, etc....never an issue, very low weight and low cost.
Stock lugs nuts, 46 grams (25.96 oz, 1.6226 lbs)
Gorilla above, 23 grams (12.98 oz, 0.8113 lbs)
Aluminum closed end, 19 grams, $$$
I have the aluminum ones that came on a car I bought, nice and light but not much lighter and as often as I swap wheels and tires around they just do not last real long so I might sell them.