John , you can try and fill the Liquid Lace with Shrimp Oil but, I don't see what good that would do you being as the oil is trapped inside the fly and the lace is Pressurized in the wrapping/tying process. What the oil does is actually two fold.
A) It creates a translucent effect and makes the light reflect on the under body. This is why the flies seem to "glow"
B) It helps The fly maintain a segmented shape. Since the Lace is pressurized; The fly body grows fatter and rounder if you release pressure as you are wrapping. Larva Lave and products like them (V-rib,etc) Don't act like this because they are not hollow.
If you did put shrimp oil on your fly (And I agree , That wouldn't be Fly fishing) I would put it on the outside of the fly, not injected in the inside as that would be much more costly than injecting your fly with baby or mineral oil.
I don't know how much you tie but, you ought to try tying some chironomid patterns with that stuff I sent you. They look Dynamite!
In closing, I thought the same thing when I started going into the drug stores for Hypodermic needles. I found that Rite-Aid sells them for $.25 each and you shouldn't be anymore embarrassed than going in and asking for prophlactics,mazazines or Kotex...
