Anyone tried the Orvis "Instant" Sink Tips?

http://www.orvis.com/store/product_choice....d=6011&shop_id=

i have those orvis sinking line thingies... honestly, i've used them maybe twice the last two full seasons, and usually no more than 15-30 minute's worth of time. i had just started flyfishing when i got them and almost from the start, i concentrated on dry fly fishing, hence the incredibly infrequent usage. i cannot offer any useful review, but i'm hoping someone will jump in and relate their own experiences and how they compare to other methods of subsurface fishing.

eric
fresno, ca.

Hi,
Airflo and Climax and perhaps a few others have poly leaders in various combos that will work pretty much the same as what those you are looking at would. (Not putting those down or anything, I am sure they would work fine)
The reason I mention it is that I have used the poly loeaders quite a bit for warm water fishing and liked them quite a bit.
Dewey