I will answer all these questions in general.
I don't know how much is needed to maintain what I have now, but the truth is if, for example, you weigh 280 pounds with 7-8% bf and use let's say:
1.2 g test
800mg deca
400mg tren
100mg anadrol day
10iu gh
40-80iu isuilny
then do not count on going down on
750mg test
1g primo
5iu gh
10iu insulins
you will keep exactly the same form as you have at the higher doses. There is no option that you will not lose part of the size, strength, fullness and quality. Maybe you will maintain a similar weight, but the longer you stay on lower doses, the worse you will look over time (to some extent, of course, because if you do not lower the doses harder, you will reach a certain point and you will not look worse)
As for testosterone doses, it is extremely individual. I know people who do a very high offseason test of 2.5-5 g per week only with gh of insulin and a symbolic amount of anabolics, such as 500mg deca or 300mg tren, and when going into the cutting phase, they lower the test and add dry agents . There are also those who use more anabolics and less test, e.g. 1g test, 400mg tren, 1g eq, 100mg anadol
and there are also those who are standing in the middle, i.e. they use an anabolics test in a 4/3 ratio and these are the most important ones, e.g. 1.5g test, 800mg deca, 600mg tren
years later, I came to the conclusion that I should use as much of the test as I can handle a reasonable amount of IA, i.e. if I have to take 2.5 g of the test a week, but also 2.5 mg letro a day a day to keep aromatization in check, I prefer to give 1.5 g of the test rational amount of IA and add more anabolics.
If we are very advanced and we are already very far from our genetic limit, we must also remember that test + deca cycles will not develop us, we must then add strong androgens before training to have a strength boost and continue to hit the progressive overload in any form that is, then we hold a base
test + deca / eq / primo / tren (which we tolerate well) and add short ester / base agents in several weekly cycles to gain more strength and thus more muscle damage and gains. So e.g.
test + anabolic - base all the time
4-6 weeks on 4 off test base / tren base / anadrol / dbol / m1t / methyl tren / superdrol
and after such 4-6 weeks we gain new strength, which we maintain for the next 4 during this time, we bring the liver to desire and repeat the cycle
Of course, many people will disagree with me, but they do not have to, this is just my opinion based on my own experiences, clients and other bodybuilders with whom I know