Just finished up a 5x5, looking for reccomendations on my next routine (HST?)

[Smokey the Bear]

Age- 19
6'1, 170 lbs
Training for about 1.5 years
Looking to build mass
Just finished a 5x5 routine, 4 days/week, 2 day split
On this routine for about 12 weeks
Saw some minor gains with this, nothing too great
Take my diet seriously, high protein, low fat diet


I'm looking to gain some mass...I got decent gains with Max-OT and my 5x5, so I want to try something other than these. I'm thinking about starting up 8 weeks of HST...has anyone had good experience with this? Otherwise, if anyone has other good recommendations, I'd appreciate it!

[Duckenheimer]

You might be better off picking a simple routine based around 5-10 compound exercises and getting stronger in it every week for a year than worry about 8 week cycles. Then you'll grow, though you'll need sufficient reps and food. Rippetoes seems like your best bet, but the individual routine isn't nearly as important as the dues you pay in poundage and calorie progression.