Umm... no offense bitdude, but if your hardware isn't submitting shares quickly enough in short rounds... maybe its your hardware.  Up until recently I was only running GPUs and the VAST majority of short blocks were well within the acceptable variability one should expect in a short round.  Short rounds are unpredictable. If your miner(s) happen to be working on a higher diff share(s) during the short round you may not submit those in time to get in the round.  Its the nature of mining.  If you've changed your diff on your workers, maybe consider lowering it. 
All in all, the scoring system has some flaws that usually get fixed by Slush, but for the most part it works.  If you don't like the variations in pay, thats ok, there are plenty of pools with very consistent pay (PPS or PPLNS).  But don't go bashing Slush's system just cause you don't like it. Feel free to share concerns or ask questions, but bashing a system you don't seem to understand or like is kind of pointless.