First of all, I wouldn't say that 1g of testosterone is a high dose, rather a medium dose, and it's the lower limit of the average. Of course, it also depends for whom because maybe for forum users it is a high dose, but in the world of bodybuilding it is rather a dose of crusie hehe
If you are 43 years old, you do not want to increase muscle mass anymore, so your offseason can be based on the test itself or the test + primo and of course gh for this mandatory. The doses do not have to be high because at this age you grow up for the competition, not as during the younger years when the offseason was used. Then you have to push hard all year round and now offseason is really rest time and you only push harder during prep and rely on your muscle memory.