Ok so I am just about set to order my first traditional kilt. I am still deciding on tartan and vendor, Watson Ancient is the front runner

So my question to you guys is in the sizing. I have meaured myself according to the specs on a few sites and have recorded it. Now the buckles on the kilt will allow for any future growth, but what about any decrease in girth? Would I be wise to subtract 2" from the waist and seat so that the kilt fits mid strap right now and still allows for weight loss and gain? I assume the strap allows for 4 inches of movement. For example, my waist measurememt is 46 and seat is 49. If I were to order the kilt at 44 and 47 the kilt would still fit, but would add room to tighten when I get back into walking each day.

I have already heard that the length mesurement is mostly without the rise.

Any thoughts, I have never ordered a kilt that sits up high or has buckles and straps. The velcro always allowed for manouvering.