Congratulations to The Great CLAM on reaching the one million blocks milestone!
these issues haunts me as well

dooglus mention about ~30 clam input, but I think This applies only to very long-term,
because first reward you have to wait very long- 40-50 day. (in case 10-15 input , even 3-4 month)
If you only have 30 CLAMs, you will be waiting an average of 30 days to stake no matter how you split them. If you have 3000 CLAMs and split them into 100 piles of 30, each of the piles will be waiting an average 30 days to stake, but one of them will get lucky and stake early. You can expect a few of them to stake each day on average. If instead you split them into 1000 piles of 3, each will be waiting about a year to stake, but you can still expect a few of them to stake each day on average. And each time one of your 3's stakes, it is only making 3+1 CLAMs inactive for 500 blocks, whereas when one of your 30's stakes, it is making 30+1 CLAMs inactive for 500 blocks, which is clearly less efficient from a stake-as-much-as-you-can perspective.
I know it is, in theory, should be, but I practically everything comes out longer, maybe I unlucky

, example: recent two my inputs of 141clam, according you theory average waiting time should be ~7 day, but I got reward after 13 day for first, and for second input of 141clam already 10day without reward.
P.S.
@dooglus
maybe you have information about clam wallet in yobit exchange ? I waiting withdraw already week, with status - "Transfer from cold storage", and any respond for support.
Yobit is a really skeetchy exchange, i believe they involved in most of the ico scams that occur on there, i dont think they would mess with an user when they have small cuts from the site. Yet i seen that lately there is a bunch of users with the same problem, maybe they scared a bit of their IOC if they cannot cover it.