For the Rota MTO, can I change just the waist measurement on a size 46 (and keep the rest of the measurements)? I would like a 30" waist. Otherwise, I would have to take in about 3", which makes the outcome a little risky.
Have you tried on a size 46? Maybe 44 would be a better fit if it's 2" too big? To answer your question, yes adjustments can be made to waist, rise and seat with MTO/MTM. Trousers can also be finished at a desired inseam/outseam with or without cuffs.