A 100% leu het is produced by a leu and a normal, so yes, that would be correct
Here's a basic break down of the het percentages:
Leu X Leu = Leu
Leu x 100% Het = 1/2 Leus, 1/2 100% Hets
Leu x Normal = 100% hets
100% Het x 100% Het = 1/4 Normal, 1/2 66% Leu Hets, 1/4 Leus
100% Het x Normal/66% Het/50% Het, etc = 50% Hets
Once a low grade het (66%, 50%, etc.) proves out, it becomes a 100% het.
The percentage is in relation to the probability that the glider will care the gene. So, 100% hets have the leucistic gene, 50% hets have a 50/50 chance of having the gene.