There are still situations with enough luck left in LowLuck. Especially naval battles, where 1-2 submarines roll dice separately from the rest of ships/air. Your 2 subs missing (2/6 chance) and opponent 1 sub hitting (2/6) also with victims removed before normal fire, can cascade seriously into a disaster in further rounds of firing, not far from ‘regular’ dice.
Obviously, battles between lone units (DD vs tra in Kwantung, sub vs tra) are exactly the same risk.
4 German fighters guarantee killing the Med BB (but not 1 sub, 3 fighters !).
With Low Luck, the 3-area Russian attack (UKR-WRU-BEL) is also assured of working (but with not a few casualties).
Leaving medium-sized forces (say 5 units) is a blunder now, as enemy can bring a raid force to take out certainly 4 units (e.g. 3inf,3art,4tnk) then retreat. With Regular Luck, that defender was protected by the cloud of uncertainty, and the raider could not bring too much offensive power for the risk of doing “too well” (!) killing all defenders and being stuck with expensive units in a dead zone.
Small deadzone swapping is more effective. Either 1inf+1ftr or 1inf+1tnk hit at one 4/6 ~ 67% instead of separate 1/6 and 3/6 (overall chance of at least one hit 21/36 ~ 58%). 1inf+1art is still 4/6 while with Regular dice it would have been 20/36 ~ 56%).
Grouped transport ships (3-4) are a better deterrent against lone fighters or bombers. The average is the same, but with Low Luck it’s concentrated into getting 1 hit, while with regular dice some of the hits were “wasted” by overkills of 2, 3… hits.
Other significant differences in strategies, openings etc. ?