400m S-L questions

Yes I’m at elite track.

-I was planning to put in work over that distance later the int tempo reps would become SE reps since it is just a summer base program to help improve aerobic abilities before fall training, do you think that should still be apart of the program?

-Ill adjust the accells
-The 450 is meant to be at 80-85% 200m pace for the first 200m and then the rest of the rep will be slower coming through 400m around 57. Now that i have actually thought about it the rest does need to be increased. I’ll drop the last 450 and leave it optional.

Thanks for the help it is much appreciated!