I need some help guys. I have a pair of Nudie Regular Ralfs (pre-washed) in size 30 which fit me pretty much perfectly, except the waist is slightly (very slightly) loose. I've found a pair of RRDS in size 28 for a very good price, but I'm afraid they'll be too tight for me. Should I give them a shot? Can the waist stretch 1.5-2 sizes? Will the thighs and legs be too tight?