Taldarim mech is simply impossible since the third isn't easily secured Really? And to think Tal'darim is my best map for mech because of the huge rush distances...
first off the thidr is easily secured... thats not why mech sucks on tal darim. the third is extremely easy on this map
tal darim is pretty much the only map that pros dont like to go mech on in tvt
in theory long rush distances should favor mech, but the reality is different
in modern mech tvt and tvz, bio terran and zergs will try to be pretty greedy against mech, instead of trying to immediately punish it. mech has a sweet timing around 10 min to 16 min where your army is just godly, but after that, 3/3 bio and mass rax + expos or mass roaches + expos will ruin your day.
on tal darim, its so hard to punish far away expos (2 marauders + 4 marine + a bunker near by == hellion runbies dont work, and now mech player has to bring his whole army to kill the expo) and when you do push out, there is a ton of room on the map for flanks/a nice bio spread
to be honest i dont even think mech is playable on this map vs a good bio terran becuase you'll never be able to leave your base no matter how many bases you take in the background