Well, time will tell if it's a decent fix or not when more people have downloaded it and there are more people to be matched up with and more diffrent kind of connections in different locations... For now it worked for me and my friends. I gave up on IW fixing the game, but as of now it seems be a lot better.

Lag compensation tweaks are mentioned in the patch notes for this patch: http://www.callofduty.com/thread/200491978

Yeah i used to have bad connections solo, and horrible ones in a party. The latest patch luckily fixed this, though i did notice a slightly increased difficulty in trying to find decent games tonight when partied up. We actually had to back out a few times but still it's much better than before, and usually we got good connections. So i might have to take my OP partly back, there still are (and will be) lag issues like there is in every CoD game. But still the game is now playable, and even at it's worse the lag is usually manageable, when considering a few things we can now get good games (and of course flying solo also)..

The things that i've noticed to affect the quality are:

- time of day (during late evening / night in my region i used to get horrible connections because the majority of players online is far away, now it seems ok but still slighty easier to get good lobbies during the day obviously)

- lobby ping (50ms or 75ms are okay, anything above will have some lag for some players even after patch 1.19, sometimes you have to restart the search a few times to avoid >75ms ping games). If you cant get low ping lobbies it could be your connection that should be blamed, or the game. This a thing that got screwed up at somepoint, only got into high lobbies in MW3 (this was solved in some patch before 1.19 for me) but low ones in older titles, and still occasionally i have to try a few times in MW3 to get into the low ping ones although in other CoD titles i get into them straight away.

- Clan Ops (if you don't want to compete in the op stay away from the game type that has the event going on). For example yesterday was Hardcore KC, it's kinda hard to notice the lag without the killcams but i'm sure there was some, so i only played a few games for the bronze xp and then moved to core. Tonight it was core KC, and again it was hard to find good lobbies, so we played a little and then did some groundwar which was much better. During clan events there are full parties connecting all round the world which might make matchmaking more difficult, and also then we also have more of those guys using cheap methods like running torrents or otherwise intentionally making their connection worse... I made up a "clan" with a few buddies like many did for MW3, but it really seems that since now we have elite and clan management there, the amount of people who will do anything to KD camp together better has increased.

All in all, yesterday i was extremely happy with the update, and still am, but there are a few things you have to consider if you want to play. It would be nice if it worked straight away 100% free of lag, but unfortunately with this game you have put in some effort even if the patch made it a lot better, and i do mean a lot.

On Friday when i made the OP i had perfect connections, the day(s) after that it took a little work to find good lobbies but generally i had little or no lag.. And now since more people are on 1.19 while playing yesterday there was the occasional laggy match that occured every now and then, but usually it was only a few guys either on 2bar or split screeners that i couldn't kill. Having a party seems to make the situation somewhat inconsistent with more difficulties getting into 50ms lobbies and more frequent laggy matches, playing solo is always better in terms of connectivity, maybe it's nearly impossible to perfectly match a party since the party itself is a "forced match" that the game itself might not carry out (different connections within the party).

U want a screenshot or something ? I'm getting a new modem to tomorrow / day after that so i'll try to share the results once it's hooked up, don't know how long it will take my ISP to swap the MAC address for the hardware, and i also dunno how to post a picture here ( might be easy, but i usually use the forum on my iPhone so i don't know if there is an option to do it somewhere if get on here via my PC).

Ok dude, I'll try to get the results here later, i'm also curious what i can get with the new HW. Obviously such a low ping is to one of the default domestic servers speed test chooses near to me here in Finland, if i choose one manually that's in central Europe for example of course there is more latency (which would also be more realistic since i'm often matched to German or French players). But i'll try to get back to you.