I'll join in with you.

My car isn't hard to start, but has a shakey start up, and burns oil for 1 to 2 min.

I'm guessing valve seals and guides are worn because it only does it at start up.
Then the smoke goes away.

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1998 Ford Escort ZX2 5 speed - 279,000 miles My Daily

1992 Mercedes 300D 2.5 202,000 - Pure junk
2000 Mercedes E320 Black - 136,000 miles - Needs repair

Don't forget to grease the screw and threads on the spring compressor.