I think if you are not statisfied with how berserk is now you should put it on hold for a year or two. Won't make much difference with how rarely the chapters come out. It's hard to feel how the story flows anyway when you get 3month breaks between them. That's why I usually prefer to read/watch everything in one sitting.
While the story is certainly "sidetracked" for now, I don't think it's as bad as many ppl seem to think.
When reading manga that's still being published it's always cliffhangers, no momentum in fights or story, side characters fade away, and the pure awesomeness of the story just degrades when you chop it up into little pieces and take it 20page a month (or worse)... It's not just Berserk. I feel the same with basically every biweek and monthly work.