I recently bought an imported secondhand British 2006 Ridgeback Supernova which I discovered had a crack just above the weld on seat tube just above the bottom bracket shell. Still, the bike was cheap enough and the crack can be welded and filleted.
Then for AUD50 I bought a barely used Shogun Samurai in my size with stuffed RX100 STI brifters and an 8 cog cassette. I was told they are unrepairable. Hence my visit here to see if I could fix them. They shift one way, but the little plastic handled paddles don't shift the other, so I have a heavy fixie. But a sweet ride other than that. I'll try to flush the brifters as suggested. Thanks!