Training for size vs training for strength

[Obs]

Ive seen many high level body builders talk about "the pump". I'm an amatuer body builder myself for several few years but I still have a hell of a lot to learn and its amazing just how much there is to learn not just in methods but hust about your own body and how it is different than others so Im hoping to get some good experience from you guys out there especially because im a guy who mostly just trains by himself or with friends who are far less knowledgable on physical fitness than I am.

Now I was under the impression that lean body mass was lean body mass but now Im not so sure. Is muscle development for size possible? In other words your 5"10 180 pounds lean body mass. If you trained differently would you look bigger?

I've been looking into training with higher reps and trying to achieve a good pump as a way to increase size. I didnt think it mattered because Ive been getting tested and of late Ive been gaining very well. On average every week Im gaining 1 pound of weight in which Ive been gaining about 1.5 pounds in lean body mass gains and I even have lost .5 pounds of fat every week so basically its a bit of a recomp but with very nice gains.

Are my lean body mass gains the same as if I trained differently? I personally want more upper body development and size right now and I want to do all I can to finally hit my ideal physique for this summer.

Slow controlled reps at 4-8 with as heavy a weight as you can lift, with 30-60 second rest between sets, at 8-12 sets per muscle group, per week, for 6-8 weeks, seems to be the most effective mass gainer. HIT...

High reps will get you just that at a lighter weight. Think about an endurance runners legs vs a sprinter.i run as high as 15 reps but that is my deload week (2 weeks) where I reduce weights and number of sets so my body can rebound.

HIT will take you to mass quicker than anything but you need a break after 6-8 weeks to recover so to speak.
After six to eight weeks.

You will look different with different training styles, at the same weight.

[MMA_Influenced]

Slow controlled reps at 4-8 with as heavy a weight as you can lift, with 30-60 second rest between sets, at 8-12 sets per muscle group, per week, for 6-8 weeks, seems to be the most effective mass gainer. HIT...

High reps will get you just that at a lighter weight. Think about an endurance runners legs vs a sprinter.i run as high as 15 reps but that is my deload week (2 weeks) where I reduce weights and number of sets so my body can rebound.

HIT will take you to mass quicker than anything but you need a break after 6-8 weeks to recover so to speak.
After six to eight weeks.

You will look different with different training styles, at the same weight.

Thanks so much.. this is something I will try for sure.. I may dabble in it but I'm about done this cycle.. I could definitely see myself going all out with this type of training for next cycle before summer really gets here. I'll try and keep lean through it of course.

I certainly have noticed my body looks real lean for my weight/lean mass. I would of thought I would look a lot different.