Anybody with B&M deep tranny pan on 727... how many quarts to refill trans after being drained for simple maintenance?

Start with 5qts and check. Normal maintaince doesn't drain the converter.

I have one of those Lokar tubes with a plastic dipstick and it's hard to read fluid level. Like to get a reasonable idea so I don't over or under fill.
Thanks

start with 5, then check it.. did you also get the filter extension for the deep pan?

I change mine every 25 to 35 passes. It takes 7-1/2 quarts everytime.

I have the deep extension. Seems to be about 9 to 10 quarts for refill but the FSM says 8 quarts for a stock pan and this pan is supposed to hold an additional 4 quarts so it has me worried that I'm not adding enough fluid. It's difficult to see fluid level on the Lokar stick.