Hand two is one of those that is easily solved by looking to your left and right. Since it is a "flight A swiss" I would play LHO for long trumps. If LHO were a a beginner, of course I would play RHO for long trumps. Effectively you must decide if LHO leading a stiff trump is more likely when they almost surely have a safe round suit to lead from (and if they did happen to have Kxxx Jxxx x Jxxx, they would probably have agonized for a while and not led a trump anyways), or if leading a trump from T7xx while happening to falsecard the lead is more likely. I'm sure you'd know better than us! I would never use this to decide but on a technical note, if it was something like a 50-50 spot, then a reason to play RHO for JTxx would be that if the spade hook is off and they happen to play 6 diamonds rather than 6N, they will go down (and possibly also down in 6S if it's Kx of spades off). Of course, you could just spin the SJ at trick 2 in 7D to find out, but you risk RHO having failed to make a lightner double and LHO having failed to lead a spade and it being ruffed.
