After riding my old pair of Contintental Terra Speeds for 2 seasons, I slashed the rear tire and replaced it with a new one. During setup I replaced the rim tape, cleaned everything, mounted the new one, filled it up with 60ml of sealant. After the first night it went from 3 bar (43 psi) of pressure to below 2 bar (29 psi). After a second ride and a second night it happened again, so I started my sponge test and covered the whole wheel in soapy water. It had 3 micro leaks right on the tread, that hadn't sealed. Now after more then 2 weeks, 2 of them had selad and one re-opened, leaving me with 2 micro leaks again.
What are my options here? I don't really want to use repair strips on a brand new tire.