Staking above 2000 trk for me automatically gives me 200 trk. so I usually set my blocks around 1950 or 1975, so I don't break the 200 trk barrier.
Maybe it also depends on overall balance?
If you hadn't break the 200 TRK hardcap barrier, u were really lucky!
Small blocks may have a chance, to get the full 200%, to not break the 200 Trk barrier, but in general u will have to wait too long to create a stake!
The bigger ur overall balance, the greater the chance to stake...