  A new condition called ${\cal T}$ condition is introduced for the first time
and used to study a pair of isotopic loops. Under this condition, a loop in the
pair is a WIPL if and only if the other loop is a WIPL. Furthermore, such WIPLs
are isomorphic. The translation elements $f$ and $g$ of a CIPL with the ${\cal
T}$ condition(such that its $f,g$-isotope is an automorphic inverse property
loop) are found to be alternative, flexible, centrum and equal elements. A
necessary and sufficient condition for a pair WIPLs with a weak ${\cal T}$
condition to be isomorphic is shown. A CIPL and an isomorph are observed to
have this weak ${\cal T}$ condition.
