904 Flares on 2-3 shift?

They'll do that if the fluid is a little low. Checking running in neutral?
Thanks Cuda checked fluid this morning as weather here has been pretty ordinary all week got a break this morning and took the car for a run checked fluid after some run time to get it all up to temp it was on the low side needed to add 1/2 litre , shifts feel crisp 3-3500rpm. Will test again later in the week @ 5-5500rpm .