And is there any benefits to doing this ?

I'm 5ft 8
3rd cycle age 29

I've been taking test cyp 400mg a weekthe whole way through I'm on my 8th week
I took winstol weeks 1-6 50ed
And added npp on my 3rd week at 100mg eod and will continue it at least 5 more week

Now I've added in tren ace at 75m eod starting 4 days ago

I'm running low on cyp and I hear its best to run tren and prop is this true and can u switch what test u take during a cylce if so what dosage of prop should I run I'm also running clen at 120mg a day