Thickness of Mars Snooper Fin Stock?
 

I want to build and blog the Estes Mars Snooper, Kit #K-20.

The instructions from JimZ's website say the fin stock is #BF-20A and BF-20B.
Old Estes catalogs show the "20" designation as 1/16" thick balsa.

The laser cut Mars Snooper fins are listed on the Semroc site as 3/32".

Anybody know which thickness is correct?

Both thicknesses are used.

Thin stuff on the top fins, thick stuff on the bottom fins.

Thanks Sandman, that makes sense!
On the JimZ page, the bottom fins are on one sheet (the 3/32")
the top fins and cooling vanes are on a second sheet. (the 1/16")

Estes has had 5 fin stock thicknesses in the past; they were always the same thickness per part number, they did not change.

BFS-10x = 1/32
BFS-20x = 1/16
BFS-30x = 3/32
BFS-40x = 1/8
BFS-60x = 3/16

There never was a BFS-50x, but using the convention above, it would have been 5/32.

Interestingly enough, the Mars Snooper II used ONLY BFS-20 fin stock for its die-cut fins, part number 32205.