Hi everyone.  Thanks for letting me join your forum.  At present I have a 12X16 L shaped O gauge layout with 5 mainlines, none intersecting.  The outside is fastrak 72" next is O gauge, next is 027, then 027 that is elevated and intersects those 3 and finally on the inside is an oval/figure 8 of fastrak.  My grandson loves it when I turn them all on and he gets to blow the horns/whistles. He also directs which locomotives/cars go on which track.  We sometimes have disagreements .  Mostly Wabash since that went thru my hometown (Forrest, Illinois), with also an IC gp20, a T,P & W gp20, and a G,M&O rs-3.  I have this in my shop and even tho I used 2 layers of 2X4 drop in ceiling panels for noise reduction it's still pretty loud.  I also have a 1/2 scale Case steam engine and a couple old john deere tractors - and - a Fairmont S-2 railcar which we take on excursions with NARCOA.  I hope that wasn't too long-winded.  I hope I can get some answers on problems I have with some of my locomotives.  I will ask those in the appropriate forums. Thanks once again.