Second type can be good, it's the same as Enve use. However knockoff seatposts have a habit of not holding very securely, so it may be worth using some fibre grip paste whichever model you go for.
Same clamp on my USE Sumo seatpost. Works really well in my case.
@Sumo started
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Second type can be good, it's the same as Enve use. However knockoff seatposts have a habit of not holding very securely, so it may be worth using some fibre grip paste whichever model you go for.