TC
Sorry Chopjock is correct, if you actually care to read the post Chop was referring to you will find Chop's answer is strictly correct. Unless you would prefer to be at 400 ft with no forward airspeed when the Tr assy takes a holiday. Personally I would take lower and probably doing around 60 to 80 kts ( that he would have arrived at in the time to go vertical to 400 ft.) At least your stabilisers would be doing something.