Use the smallest needle you can find and if you happen to get a drip don’t touch it and it will evaporate crystal clear.. if you try and wipe it off it will leave a smear.I've got an array of glue dispensing things coming today. Bottles and syringe types with various sized blunt tips. I figured the syringe types would be more control but if I hated it I have bottles as backup.
I did this for my AIO part on my big tank, and I had drips from the bottle applicator before.