Drilling out the endpin collar I lost my endpin and need to replace it I bought a 10mm aluminum rod but it is too big I'll go pick up a 9mm aluminum rod today but was thinking the 10mm would be a little bit stiffer Are there any problems drilling out a steel collar to 10 or 12mm? It will make it lighter so it should resonate slightly better , but probably only noticeable if I went to 12mm Thanks Robert VanLane