Don't sweat too bad, unless I'm working on something. Sitting in the shade, with a slight breeze isn't too bad! Gets worse though, if it's muggy, because there's thunderstorms around somewhere! Tornado watch for here this afternoon/evening. Expired about 8PM. GP30 upgrades and upgraded power supply are ordered. Should ship out Thursday. Should be good, once installed and working right! Track crews got busy today also. Installed another power drop to the loop out front. Had to find original wires, so I could splice in! Couple more power drops to both loops yet, then I should have a pretty even power distribution all around! Seems to have helped. Train does not appear to slow any longer, as it did before. And a 32# or so coal train(12 cars/lighted caboose) does NOT help! Then again, neither do the curves and slight grade! Just wish yard was a bit larger!! Longer run, larger curves, small yard perhaps...... Oh well, guess I can't argue, lucky my folks let me build what I have!! But they enjoy it also. I know neighbors and other folks in the neighborhood enjoy it's! Especially the kids!! Many times, folks don't know the train is there, until they either see it moving, or hear the sounds!