Jim, I cannot help with bladder tank systems but as to props I find that APC are superior to Master AirScrew. I find that I get more thrust from an APC at the same rpm than I get from MA props. That said, I have to confess that lately I have been using Chinese knock offs of the APC which only cost a round $1.00 to $2.00. You have to factor in the cost of shipping but props are relatively light and I like to have a variety on hand so I go with "HobbyCity" and so far have had good luck with them.

https://www.hobbycity.com/hobbycity/...p;ParentCat=58

Oops, I should have pointed out that I fly electric control line. Chinese knock off props for glow applications are listed here:

https://www.hobbycity.com/hobbycity/...idCategory=211