I have zero problems with the dial on my logs. Of course, digital voltage controllers are available, but I've never felt the need for one. Once you find the right spot for you on the dial, it is amazing. I know exactly where the right temp is on that dial for my own personal taste. I don't even care what temp it is, as long as it's the right one for me.
Just like my Silver Surfer vape. The dial doesn't even have any numbers or lines or anything. I just learn my sweet spot, and that's where it's at for me. I find the experience with these kinds of vapes much better than we looking for a specific digital temp number. It's not the temp of the herb when you are inhaling anyway. It's just an obscure number indicator, and you still have to find your sweet spot.
I love my flowerpot. It's got very precise temperature control. And, for flower, I've settled into 635f to be my sweet spot with the glass piece I currently use it with. But that's not the temperature in the bowl when drawing at all. that's the temp of the coil that heats up the metal body above the bowl. So, the temp I set it at is just as obscure as a number on a 1-10 dial. I find the sweet spot that works for me and I go from there.
You can trip yourself up looking for a specific temp. I find that just finding your sweet spot, learned by taste and experience with the device, is much more satisfying than trying to hit a specific temp.
I like to show people this pic I took of my log in action, as an example how much you can milk your glass with a log. I bet you'd like to drink this milkshake. That was all tasty vapor, with no combustion taste.
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