Tomorrow I will go and look if there are some hefty/heavy pens to write. Do you know any heavy duty pen models?
I have a Waterman roller ball that has a nice weight to it. Just thought I'd mention it even though you said you wanted a ball point.
I have 4 of the Cross Townsend and love them. They tend to be on the heavier side. The RB is a little heavier than the bp.