After about 3 to 4 passes using the tranny brake I will get fluid to come out the dipstick

the fluid level hot is ok and not airated, I dont have a tranny temp guage so I dont know how hot its getting, I let the car cool a little after a pass, I dont hot lap it.

In 2008 I never had a problem I was useing a B&M super holeshot 3500 converter running 10.35 @ 130 then I blew the stator in it and sent it to precision converter in Iowa and installed one of thare converters, that didnt really help the car at all, then when I got my old B&M back from precision in 2009 It helped allot it got my car in the 9s but after a few passes fluid comes out the tube, so I installed the old precision converter and the same thing happens!!!!

Anny one hear have the same problem?

I start my burnout in second then as soon as the tires break i click into 3rd and burn till the tires grabs, then stage the car and put on the tranny brake and as soon as the top yellow lights I floor it and leav on the beginning of the third yellow.