[Suicide Junkie]

#1) GETL("X") >= (2 + ([%Lvl%] - 1)
is the same as
GETL("X") >= ([%Lvl%] + 1)
GETL("X") - 1 >= ([%Lvl%])
level 2 tech or better gives level 1

#2) GETL("X") >= (1 + ([%Lvl%] - 1)
is the same as
GETL("X") >= [%Lvl%]
Level 1 tech or better gives level 1

Why Aaron used overcomplicated formulae with spurrious "1 - 1" bits I have no idea.