I know I wouldn’t want an LT for filtering on my daily commute from Suffolk to the South Bank and back. They are easier to filter than some might imagine but they’re not a good bike to choose if you plan to filter often.
I also think you’re a tad optimistic with regards to outperforming sports bikes. You may well be a more experienced, faster rider who can use more of the capability of his bike than the sunny Sunday afternoon only MotoGP wanabe on his sports bike but, good as it was, the LT will “not outperform†any sports bike with more than 250cc. (Unless we’re talking about a race from here to anywhere south of Paris!)
Not optimistic at all! 12LTs go around corners. Oh yes, having creamed the sporties in the corner, they go whizzing past on the straight, but by then, its too late and they "have been done". Oh the fun at "Wandsworth bridge roundabout" to be had, or filtering along the A3 towards Robin Hood and up Kingston Vale, down West Hill and so forth
I used my 12LTs to commute all over the place, Kingston to Brighton, to Peterborough, to Cambridge, to Basildon, to Cheltenham/Gloucester, to Wilton, into central London (south bank, New Kings Beam House), to Solihull, to Southampton, to Telford, to Birmingham, to Reading, to Theale, back to Cheltenham, runs to Leeds and back in a day...
All up I clocked almost 200,000 miles on 12LTs, 82,000 on the 05 alone, having started with a 99 that suffered every fault they were known to have, from gearbox oil seal to crown wheel bearing to having the gear change fall off