not sure TWD is the hardest pin, just because we have all diff feeling about a game, and also on how/what you think its difficult
but for sure its one of the hardest i have ever played/owned

i'm a player, and as you, playing TWD (i get home) is a perpetual battle to simply avoid losing the ball (even before thinking to aim for something)
and than of course, you have to play the game to advance in it, and this aspect is also quite hard (again because you have to shoot these 3 targets on the left, making ball angle being a prob more than often)

to compare, i'll speak about IMan, while listed above, and even if its a drain monster at outlanes, i dont feel this pin being hard to me
played this at DPO free zone last week-end, 4 or 5 games may be, and did reach DOD

lol (and no, my 1st name is not Keith)
yes, the HU, with the central shot starting at 35M (got it quite directly at 33M, finishing the game at 105M)
my son said this should have been 50M, than is this a sign the pin was set to easy settings ?

ok, was thinking this could may be linked to the difficulty setup...
anyway, reading you, i have to study a bit more IM, seems i'm missing some aspects of the game

you must be joking ?

just played few games on it, 7.4M by just playing multiballs (as i didnt know the rules-reactors at that time)...