Something seems wrong though.
I'm supposed to get boosted LP?
I got 60 LP when I won my first placement and got silver 3 (after being gold 4 in flex last season). My next 3 wins (despite getting S ranks in all 3 of those games) have given me 39, 33, and 35 LP. Something seems very wrong with that, that's barely 50% more than I normally get at the start of the season (25-26 per win). The only benefit is to avoid promo series, but at the current rate if I have 2 games left and if I don't win both I might only end up silver 2 99LP - only avoiding 1 promo series with placement wins despite going 5-5 (currently 4-4).
I can only imagine that losing games 2-5 screwed my LP gains in games 6-8, but that's absurdly unfair. Getting absolute garbage teams for 4 games in a row that can't listen to pings and avoid feeding snowball assassins early (5 tbh, game 1 my bot Lane fed their Kai'sa ADC 16 kills but we managed to carry them) basically means not only do I not get that potential 200-240 LP but also I only get about 100LP for the next 3 wins instead of close to 200. That's a 300LP deficit (or 3 divisions, one of which is going up a tier) because of 4 games.
So REALLY not a fan of the new system. If my gains stayed around 50-60 per win and I was at Silver 1 0-40 LP right now it would still stuck (losing potential division skips because of a few games with bad luck) but at least be understandable. A few losses making your climb 2-4 divisions (and promo series) longer despite coming back with the same number of wins is absurd though.
Just glad I did flex first and not solo queue. Dropping from plat 4 to silver 1 likely, would have been devastating. Hope they fix this garbage before I do those placements.