My love of bottleneck slide has had me searching for the right sound and feel in guitars and slides. Back in the proverbial day, it was an SG and a Corracedin bottle, sometimes brass. More recently, I’ve switched to Telecasters and resonators.
My technique has expanded a lot, particularly in the last five years. I now “almost never” play in standard tuning, or play without a slide. I use the slide on all six strings, often form chord voicings by fretting behind the slide or use “tapping” to extend melody lines.
As a result, my preferences for slides has evolved with my technique. My two favorites are here: a hand blown slide from Diamond Bottlenecks and a Mean Old Fireman signature slide, from Furious Slides. Both pictured here atop Mule Mule Resophonic #151.