Pirelli STs verses GTs

[Horse]

Did a bit of a search and could not find an answer , thought the collective "oracle" of 1400 clan might have an opinion / answer as to the durability of the ST tyre V the GT tyre as I am currently on the ST with no complaints and wondering whether a 30% premium for the GT would be money well spent as I'm up for a new set so in short anyone out there used both and got in any views , thanks,
Horse

[grog]

Mate, if youre happy why change. Whats ks did they last? Ask or check manufacture date.

[Horse]

If the GTs are likely to get 30% more Ks its just less fun with tyre irons which is a positive I got around 10k out of the STs and about 13k out of Michelin GT6s so $200 difference in price of the pirellis is the main reason for the question.