Well, by your account you weigh:
190 lbs at 10%BF = 171 lbs LBM
And you’d like to be:
205 lbs at 8%BF = 189 lbs LBM
So, assuming you’re able to bulk and put on JUST muscle you’d have to gain (189-171=) 18 lbs.
Of course this doesn’t factor you’ll probably lose some muscle dieting down afterwards, so lets add another 5 lbs of LBM to bring you to (18+5= 23 lbs)
Also factor that you will have to gain some fat:
1:4 fat to muscle gain ratio is very good, IMHO (so for 23 lbs you’d have to add another 6 lbs = 29 lbs)
1:2 fat to muscle gain ratio is what some guys with crappy genetics have to work with (so for 23 lbs you’d have to add another 12 lbs = 35 lbs)
So, you should at least be aiming to get your weight somewhere around 219-225 lbs before you think of dieting.
Of course this is an oversimplification, but it’s just to get you thinking.
Keep HOT-ROX for when you start cutting at some point down the road.
Start bulking TODAY!