I feel ya. I did the Waterbury Method and I felt like it was made for me. As a matter of fact, I liked it so much I stayed on it for 8 weeks. Yup, in weeks 7-8, I wondered why I was losing gains instead of gaining. After, I did the Waterbury Method, I did the Superhero Program. Then I did the Waterbury Method, again.
Finally, I moved onto Westside for Skinny Bastards. I wish I did Westside for Skinny Bastards instead of the Superhero Program. It’s a specialization program and doesn’t put mass all over your body. Although, my shoulder girdle and biceps were looking good
(Not to bring down the Superhero Program, but a trainee at my stage doesn’t need a body-part specialization program)
To answer your question:
No, I do not think you should continue with the Waterbury Method after 4 weeks. On the 5th week deload, take a break, and give Westside for Skinny Bastards a try.
I know how it feels, but take it from someone who’s tried it. You’ll start to dislike it in week 6-8, and I bet you’ll be searching for a new program real quick. In my opinion, it’s a program you do for 4 weeks to boost up upper body hypertrophy/strength, then come back to it in a few months.
Plus, if you continue with the Waterbury Method, your legs won’t get much stronger, unless your experiencing newbie gains. The focus is more on the upper body. There’s no dedicated Lower Body Day either.
PM me if anything. Maybe, I can help.