I will admit, now that I'm more confident with the butane (successfully resoldered a set of steps back onto the 30XX' tender with no noticable damage to the paint a few weeks ago), I have been tempted to have a crack at the siphon, so many other projects! and I hate having too many on the go. There's at least 4 other GWR vehicles in various states of construction already, plus a pair of Metal models 4 wheelers that weren't begun, so plenty of brass to play with. You are correct, that is the B16 kit, it must have been a late purchase as its under the Gladiator label, as a prototype I've long had an affinity for, It is one that I would like to build.. one day. The Q1 is definitely the MTK one, complete with cast aluminium boiler! I seem to recall some consternation when it arrived, I have no idea if I'll ever have a crack at that, given apart from the kits I've already mentioned, there's at least 3 sets of tinplate components from Leinster (Patriot/B1/O4) and 2 sets of similar, but in brass, for a brace of 9F's, then there's (possibly 2) 47's, a Deltic, either a 50 or 56 (not sure which, could be both) and the LMS 10000 / 10001 twins from DJP, on top of the repairs/rebuilds that I'm already undertaking! You can see why I'm thinking of putting a few of the Pacific's ( David Andrews A1, DJH A2/3, A3, and Clan) on ebay with the JLTRT 40/44 kits already listed - despite already having an A3 I may yet keep that kit, for now at least ,and make it a kylchap/Witte deflector'd one (ya I'm a heretic and really like the A3's in their final form) Think I might be busy for quite a while before I get that far!