In this neck of the woods, we've been using Varivas hooks to tie our Tricos for years now. The old #988 hook was replaced with the #2300 Ultra Midge hook. The description on the box says the 2300 is a 4X Fine Micro barb Half Long taper point - yikes! These hooks have a wide gap which gives a much better hookup rate than say a Tiemco #100 (in a size 26, which is about the same shank length as a Mustad #94840 in a size 24). These are easily the best hooks for tying Tricos I've ever found - even better than the Partridge Marinaro midge hooks.

Was in this fly shop today, and they have a whole bunch of Varivas hooks in stock in several styles:

http://www.littlelehighflyshop.com/