Some days ago, on Discord and/or Facebook, CW asked if folk would rather have a new LSWR/SR M7 or an LSWR Adams O2. Kris was surprised when the O2 won hands-down, stating that he thinks the (2013) UKTS O2 is one of UKTS's better British steam locos. I was not aware of the UKTS O2 until then. DL'd it yesterday. For an initial look-see, I plopped it down on Western Branch Lines, simply because one of its QDs was selected in the Menu. Here it is, in Southern Green, hauling a CW SR Van and three Southern coaches. (It's also available in BR Black and BR Dirty Black.): The O2 handles this load with power to spare. I upped the ante by swapping out the three Southern coaches for two Green MK1s, and moved the train to the newer of our two Portsmouth Direct Line routes. It did well pulling its new load, though for some reason smoke/exhaust never kicked in: Feeling that the loco still had more pulling power on tap, I added a third green MK1 and moved the train to the earlier Portsmouth Direct Line. Exhaust returned! That said, I noticed neither cylinder LOVE nor safety valve exhaust during any drive: This is the only of the three QDs I drove to completion. The UKTS Adams O2 drives well. Looks fine too, better than some locos I've shelled out good money for. Alas, it lacks custom cab lean-out cameras, a negative for me. But again, it's freeware, and no worse than too many locos I've paid for in this regard.