How'd you size them, I know it says half size down from UBs but you also mentioned "if the UBs are snug" so is it size down half because UBs are snug and had to be sized up by half or half size down is just perfect length-wise?
But I got to say, with my high in-step and UBs less forgiving upper, I could fit in a size 9-10 without any problems and 10 while 9.5 is probably the sweet spot, 9 is the perfect length though and would be great if the upper were a little bit more pliable.
Well it all depends of width of foot and/or length. I half down sized from my UB size for length. UBs have a more narrow toe box so my 2 thru 5th toe will almost hit the side of the toe box.
EQTs have a wider toe box so you don't have to .5sz up from your 'TTS'. Reason I quote that is because TTS is subjective to how folks want their shoes to feel. But with a .5sz down from UB, you'll get the same length as UBs, just more wiggle room in the Toe Box.