The tires I have researched to replace the 040's when the time comes are:
Yokohama S.Drives-great price, probably longest lasting, TR test likes the responsiveness. OEM sizes probably less sticky than OEM Bridgestone.
Bridgestone RE- 040-I have lots of tread left and so far like the responsiveness of this tire. Very expensive to replace but OEM sizes.
Toyo-reads as a very sticky tire wet and drive but soft sidewalls meaning not as responsive. OEM sizes.
Dunlop Direzza Sport Z1 Star Spec. - Decent price for what TR tests as a great tire, A bit less than the RE-11 and a bit more noise but cheaper. Not OEM size but close enough.
Bridgestone RE-11- Much cheaper than the RE-040, but better in every area and the best from TR test and reading. Not OEM size. My top choice when the time comes.
I want to keep the Spyder responsive plus tires are my contact to the road, money well spent IMHO.
Mine is a Daily Driver in residential and freeway plus rides in the country. OEM springs with Koni struts, some bracing and soon a CHE dual exhaust.