hmm is there an automatic split-after-stake implemented in wallet/chain? if i put around ~200k rain togther it get always split (2x times at least

) into 2 equal blocks around 100k- is this just a seeting in the wallet or in the chain?
Yes for some reason larger blocks of inputs seem to split when they stake. I have mine in 20k blocks now and they don't seem to split but every now and then I get a block that splits for some reason so I'm not sure why this happens. Maybe try splitting them into 20k blocks and see how that goes for you as I know combining blocks can be a pain sometimes when there are a lot of coins.
Please tell me the purse is still- V1.0.0.1?
Yes its still this version.