Replacement Eartips for Oppo Enco Buds2


Recently got Oppo Enco Buds2 for miscellaneous use . Already have OPPO Enco M31 for music etc which support lossless codec LDAC and have used other innumerable earphones wired and non wired

The issue with Buds2 is that factory medium eartip was loose , falls off from ear when shaking head . I had lots spare , checked another set . Now thats fitted but ears start paining after some time and this has the tendency to slide off after 15-20min
What is general feed back on the eartips ? If any one has used replacement tips pls guide . I was planning to buy these Sounce replacement
This much earpain in 1/2 hour i hadnt faced with any other bluetooth earphones earlier , is it commom with this model as not so with M31
If anyone has any better replacement tips advise pls post