Hi ... is anyone able to tell me what the sizing is like on Falke tights? I ordered a wool pair from Figleaves in a medium ... per the size chart medium is for those who are 5'1" and 5'6" and between 120-140lb. Medium/Large is 5'2 to 5'8" and 130-140lb. I'm 5'7 and 125lb so Med/Large in height and the Medium in weight. What do you reckon ... exchange or chance it?? . Are the sizes generous or on the small side?