Flapjack, you didn't wander into my league house by any chance, did you? It definitely sounds somewhat familiar, with the down and in shot being the line of choice because of the flood in the middle. I have seven "drier" boards outside to work with, but even those boards are heavy enough that you can't swing the ball out to them and expect to get it back to the pocket. I was starting to think that I'm the only one who bowls on oil anymore, based on the continuous string of comments of posters here who claim that they never see any oil.
My house did try the Brunswick "Command" oil, and after the 5 gallon bucket was gone, the owner switched back to Defense. However, the Defense was presenting a lot of carrydown problems with the machinery, so the owner finally went back to one of my favorite oils "Black Gold" (by Neo Tac). The Command experiment was a bust....nobody liked it, and it didn't take the owner too long to figure out that it wasn't what he wanted either.
As far as length, my house typically runs 40' to 42' here lately, with the shorter length being for the mixed leagues. Those extra 2 feet of oil on the men's leagues kill my average about 10 pins.....I checked across all of my leagues, and my 2 men's leagues were both about 10 pins lower than my mixed leagues.
You might want to talk to the house about trying out the Neo Tac "Black Gold" lane conditioner. One fine point about Black Gold is that it doesn't carry down nearly as bad as some of the other oils out on the market today. You visibly see what appears to be carrydown with the Black Gold, but the carrydown stripes don't feel slick, so what is carrying down must be some additive to the oil instead of the oil itself. I know that the owner of my house has tried just about every oil that ever hit the market, and here lately he has settled in on the Black Gold, if that tells you anything. You can check out their website at
http://www.neotac.com. Yes, this is the same company that makes Hook-It, Renew-It, Control-It, Liquid Sandpaper, and Liquid Nitro....they've had Black Gold on the market for at least the past 5 years now.