I’ve tested the TallBoy LTc (at Cannock a couple of weeks ago) and a TallBoy (at Roman Lakes on Sunday).
There are a whole load of other variables but I much preferred the ‘normal’ TallBoy to the LTc.
Unless you really need the extra travel I would go with the shorter one. In fact I found the same with the Scott – I preferred the Spark to the Genius. This is not usual for me – with 26ers I normally run as much travel as I can get away with (150mm on my HT and 160mm on my FS).
Other bikes I tested for info, if interested:
~ Whyte T-129s: really liked it, as good as the TallBoy – won’t be any left to buy when I get my bonus in April 😥
~ Cube Stereo 140: felt quite odd/short to ride but a lot of fun – I’m very keen to take the AMS 120 for a spin