There's alot of good youtube vids that show you how to get through Strong Approaching at all lvls, for f2p and for cash-users. For Hanzo SA, however, I've yet to find a lightning team (and i suspect for other mains as well) that doesn't force you to wait an extra round on the Shizune or Karin stages because one of your standard attacks set off a combo before Shizune/Karin heal themselves. This will always cost you points, and sometimes even force you to restart.
For those who don't know, the key to shizune/karin is to wait until they heal, then start off a long combo. Then, immediately as the next round starts, begin your combo again using a mystery. E.g. lightning main using chidori blade (knockdown) starts off a combo involving Neji(to high), Main(to low), summon (to knockdown), Kabuto (to high), Kakashi (to low, to knockdown) --> a 7 hit combo. Combined with Kabuto's 4 clones and regular attacks, this should deal 20+ hits over 2 rounds. NOTE that 'knockdown' starts off this combo, but either knockdown, high float, or low float can set off any part of the combo.
This means that if your main goes first, and you use 'beam of light' (can cause knockdown/critical), there's a chance you will trigger a knockdown with your standard and thus, a combo before shizune/karin heals.
The easy solution to this, which alot of ppl seem to have missed, is to use a standard attack that DOES NOT have a chance of triggering the combo. E.g. 'Taijutsu Attack' standard for lightning may cause Triple Combo and Repulse, neither of which will set off a combo. Using this solution will guarantee that you can go through your SA every time, without the risk of having to wait/restart cuz of accidentally starting a combo too early.
If you guys see any other such useful, but missed, solutions, please post below. Knowing this earlier would have saved me hours of failed SA runs.