As was said and in the other thread SK's and USAK's are night and day.

A USAK will be more form fitting and give a much more tailored look than the elastic, pleat to the gather SK. That may be a negative in the ring once the bell rings.

Semi-trad's have the buckle and straps where as a SK Standard does not.

You might look at one of the Stillwater kilts which will give the appearance benefits of the tailored kilt with maaaaaany pleats in an acrylic material. Price will be very reasonable as well.