To all the Staccato owners or would like to be owners, do you prefer the steel frame or aluminum frame models, more particularly the steel or aluminum framed Staccato P. They say the aluminum model is 5oz lighter yet just as strong and reliable as the steel frame, same coating, everything. Are there any valid reasons to pick one over the other, besides the weight difference or and personal preferences? I would like to put them side by side for a true comparison but that's expensive.