Yeah I wish PP would come with half link like Rolex but as is it is either too loose (like you said it will slide around) or a bit snug, which is fine for now since itβs winter, but come summer it will be unwearable.
5131P is currently also the only model with platinum bracelet so service center told me even the Swiss HQ doesnβt have any links in stock, they will have to make it for me, sounded like 3 months wait at least.