PPS pools are targets for hot wallet attacks etc. and have pool debt rewards unpaid and can carry on during long between times of block solving. 50BTC will forever owe me .282151 BTC. PPLNS is pool hopping protection. Large miner cant swoop in a screw your block reward because it bases off past work contributed usually presented in a shift based form for human consumption.
I always looked at block solving LUCK as pedestrian vs auto accidents. There are things to mitigate them but they just happen. If I didnt find this block does it mean the pool would not have? I dont know. I just try to keep my hardware in good condition, pay for a stupid fast internet connection to minimized rejects, stales, and check threads for updated firmware. SP gear is easy. Updated the S5s and S4s cut the HW errors down considerably with CGminer 4.8. thanks CK and Kano.
Decided to run a full node, 9 weeks left of catching up. I am in fairly close proximity to the pools server. Pings are in the 35s. So maybe it will help in an orphan race.
I have airflow problems with hot weather more or less few weeks away. Against every fiber in my being evaporative coolers are on the way and will be back mining in a few days.
Happy hunting CK pool.