Re: Sewing conductive thread in to glove fingertips.
I realize that we are talking about extremely small needle punctures with this modification but the needle is also puncturing the waterproof membrane in the glove. I do not stop for rain. After riding for hours in heavy rain I am always amazed at where water can find an entry point. Being wet when it is also cold is not fun. Having wet fingertips in cold weather doesn't sound appealing. I wonder if this modification compromises the waterproofing of the gloves' fingertips at all?
I understand that there are differences between gloves, but with most gloves, where the waterproofing is provided by a membrane (eg. Goretex), the waterproof membrane is a second layer inside the glove. In other words, the outer layer is not the waterproof barrier. Therefore, attaching the thread will not influence the waterproofing properties as long as you do not penetrate the inside, waterproof layer. Also, with many gloves, you will notice that the inside layer is already sewn to the outer layer at the extreme tips of the fingers. This is to facilitate putting, and taking off, the glove. As a result, the waterproofing has already been "compromised" to a certain extent.
You can also sew the conductive thread onto a small piece of fabric/leather and then glue that onto the tip of the finger if you want to ensure that you do not compromise the outer layer.
