I think it might be time for troutie to change his business model, as it looks to me that he ties up a lot of his spare time doing stuff like upgrades, and which may compromise his support for the new products he actually sells.
Maybe he can do an upgrade the first time someone requests it for a light he hasn’t seen before, but after that he just sell a kit of parts and instructions that he has proposed from that first upgrade.
Would that work, and leave him time to respond to emails quicker and have more time for riding and beer making?