Using Syringes as Glue Applicators...

In general, when constructing a model I squirt a glob of Aleene's glue onto an old 4x4 tile on my work surface and use a bamboo skewer to spread where needed. But there are times when I need to be a bit more precise and get glue into tight areas. This is challenging for me because I'm blind in one eye and have no depth perception. I can't even begin to count how many times I've slopped glue because I've misjudged the distance between the model and the glue applicator.

I've purchased some of the Duda syringes and I want to experiment with them. I'm a big fan of Aleene's original tacky glue but I'll need to water it down in order to force it through the syringe. Can anyone suggest a reasonable water-to-glue ratio? Any suggestions on how to prevent the glue from drying in the needle? And finally, since paper and water don't mix well, has anyone experimented with using something other than water (alcohol? floor wax?) to decrease the viscosity of glue?

Inquiring minds (mine) want to know!

--jeff