Opinions on Dynabeads

Looks like it's about time to consider replacing the rear tire, not because it's worn out but it is beginning to show cracking in the tread grooves. Can't complain since the bike is an '06 and the tire was made in '04.

Simply wanting opinions from actual users of Dynabeads and how they like/dislike them. Really would like to get rid of the ugly lead weights clamped around the spokes...