GPP for 400m runnres

I wanted the pace at 65 s for 400m and then we will see how they manage the rest of the 600m ( I figure out that first sesseion would be like 1:40? and in couple of week lower to 1:30) but pace will be in GPP same-65 for 400m Nothing faster. The rest would be 15min.
The rest of the session for the week will be in charlie style for GPP (only wednesday exeption)

Still not good idea? The reason is thet at begining of Decemberthe athletes must go on camp with cross-country skis ( and do couple of miles on them every day- call condition camp) The competition season starts second week of January. That’s the reason I want to put 600m on program. I figure out when they come back from the camp, we will have a light week-nothing fast-for recovery. tham another 4, 5 weeks…

And I would like to know- the Charlie’s GPP Essential plan is for 60m-400m runner, same? Same model?