It's not about speed but symmetry.

>Might be gotfocus/lostfocus or when/lostfocus but not when/valid. It is not important to lose 1 or 2 nanoseconds in when firing with each move I think.
>
>>Shouldn't it be GotFocus()/LostFocus() or When()/Valid() ?
>>
>>>PS: Maybe:
>>>
>>>Combo.when
>>>set fixed off
>>>
>>>Combo.lostfocus
>>>restore set fixed
>>>