Madness. You don't sell replacement silicone tips separately?
Have to be honest, that's disappointing.
I'm pretty sure there are many users who'd like the option to buy tips in either graphite or glacier or for mix and match. In my case, they've lost shape and it seems ridiculous that I should have to spend another £199 (or even £149 currently) just to get a replacement set of large tips where mine have split.