Respectfully disagree.
There are several ways to tune your rifle. An adjustable gas block is an easy way to do so and can be an inexpensive way too. If you're trying to adjust the amount of gas/pressure in the system with off the shelf components there are only so many options. An adjustable block has been acknowledged by several manufacturers (noveske, pof, pws, Adams, Sig, etc) as a good option for suppressor equipped firearms.
Those guys sell those components though........
Give a guy that knows what he is doing a chance. If that falls then Fo with Plan B.