Best Bang for Bucks $$$$

OK - Let me express a BIASED opinion.

The RAMAIR was designed by a member of this forum. NOT ME, but he is a friend. His name is Colin and is a hell of an engineer. Now officially retired by still employed training apprentices in a firearms company. He was instrumental in designing one of the worlds finest Speedway engines ever - the Godden. His first filter design was made by ITG but would not fit under the claw - I have it. Only Ramair would even try to make his second design. I had the prototype and now have a production model. If you can persuade @ozrider to make you an air-claw then it really really works. I have plans for a side-feed claw - but time flies faster than my mind can deal with.
 
@Roscoe - this is an interesting topic, and one that has been addressed at length in the hundred years of accumulated experience on this site -- all searchable.

If you are really interested, I suggest you spend some time using the search function, and if you still have questions after that, please ask.