If I understand this correctly and you make it to the top row of 4 4 8 and you lose all 3 bets, you will lose 16 units which can wipe out all your previous profits.
Well it's technically correct that you could lose all three bets from the top row (4a 4b 8c) totalling 16 units, you would however have gained units along the way from all the previous rows. So in this instance you can only lose a maximum of 4 units in total playing to the end.
Worst case scenario from a total wipeout in the different rows are as follows...
row 224 = 6.
row 244 = 6.
row 336 = 6.
row 366 = 6.
row 448 = 4.
Of course you could have suffered a few -2 losses (base bet) before proceeding to play the rows.
Option 2 and the rows are as follows.
2 (base bet)
2 4 4
2 4 4
3 6 6
3 6 6
4 8 8
With this option, winning the desired net units at any given level only requires winning the 'a' or 'b' bet at anytime. So not too much different from option 1.
There is an option 3 and an option 3 (sidewall version) I will leave them for another day.
If I had to choose from any of Greiner's progressions, it would be the Boxer which I have already shared. It packs a good punch for either short streaks or close knit groups of wins. It's close to the G3M1 from Koetsch which is my favourite.