You are more knowledgeable than me. I've removed the settings and restarted the miner, after 18hrs using the settings I'm at 3.5% reject. Shall be interesting if I'm around 3.5% after 18hrs with the settings removed.
If not the server may not be compliant with the stratum protocol. Terk has stated it runs its own version of stratum, so I guess we will see (if the settings are required for his servers).
Proof will be in the pudding? I run sgminer 4.1 with the zuikkis kernel fwiw.
It's literally impossible to judge how these settings perform (or rather, whether or not they have any impact at all) by trying them on different days. The pool's reject rate varies heavily, right now the average is ~5%, but if we mine faster coins again or the pool's hashrate grows, we might get 10% or 15% tomorrow. And then you'll say "Kalroth is wrong, these settings suck"
With the settings used for the past few days, I've been below 5% which was way below the pool hash rate of 10%~. You are right, so I just expect to fall below the pools reject rate. If I find performance is worse ie over the pool hash rate, that indicates to me the settings have some affect and I'll go back to use them. As results proof to me they have an affect with this pool and so the stratum protocol in use is not following the standard based on Kalroths comments and my results.
Just read Kalroth's responses, interesting that he believes its the pool at fault since there is no more tweaking to be done on my end. Also reject rate does matter as its the accepted rate that is paid. So if I get a really large reject rate it will negatively affect my earnings.
I already have the tcp fix installed, I used this on Win7: http://www.wowinterface.com/downloads/info13581-LeatrixLatencyFix.html