I have been acquiring twin tube rackets circa '95-'98 and have amassed about 6 so far. Yesterday I went out to my local court to practice my serve, and I hit a couple of hoppers full with my new '95 twin tube zebra. I then decided to hit a couple with my '98 model tt and upon picking up the racket, I noticed immediately that it was substantially lighter than the '95 version. I would say at least a couple of grams. This puzzled me because I have heard repeatedly on these boards that there is virtually no difference between the models for these years save for the paint job, but right away I noticed a difference in weight. How could this be? The only difference is that the lighter '98 version has what is known as 'cap grommets'. Are the cap grommets significantly lighter than the standard grommets (makes no sense as the cap grommets looks like more plastic on the racket)? If this is so, then I think I'd like to get a few sets of the cap grommets, because to be honest, I found it significantly easier to serve with the lighter version. Any ideas where (if this is what's causing the weight difference) I can get replacement 'cap grommets' for this particular model? Thanks in advance.