The only time it should advise standing on < 10 is if you select the manual strategy option and set the hard standing number to a lower total than the hand total. That's what I suspect you did. You can manually change the hitting strategy for any hand by inputting different hard/soft standing strategies. For example, total dependent basic strategy versus an up card of 10 is to hit to a hard 17 or to a soft 19, so hard standing number = 17 and soft standing number = 19. Using the defaults that exist when the program opens, input 8-8 for player and 10 for dealer and click the calc button. This will display the basic strategy EVs for a pair of 8s versus 10. After that select the manual radio button and set HSN (hard standing number) to 16 and leave SSN (soft standing number) unchanged (= 19) and again click the calc button. You will see a very slight increase in the split EV. This means that it is slightly better strategy to hit to total of 16 rather than 17 when splitting 8s against a 10 and a very slight improvement to basic TD strategy.