Thanks everybody for the answers,
Most of you tell me that it´s better to extend downwind or use of flaps 3 or whatever to finally make a stabllished app.
The thing is that we fly many times positional fligths with no passengers so we can try "other things" so if I´m to high I like to fly feeling what can I expect from the aircraft (with safety of course)
My procedure usually consists in reducing speed and descent with flap 3 and speed brakes full (gear down aswell), what I´ve always think that was better than full flaps.
But recently I´ve flown with two guys that told me the opposite, and one of them told me that speed brakes are usefull at high speeds, but at lower speeds they loss effetiveness so is better to use flaps full.
I will ask my question in other way:
***What offers more drag, full speed brakes OR full flaps in comparison with 3?***
Sorry for extending so much...