I got my 4th Springomizer this week
First one I got the day after they were available on the stores and I have used nothing but Tilemahos with Spring and Penelope v4 since then.
Cleaning springs: You can put a spring in vinegar for about 10 minutes, then put it on a toothpick and give it a scrub with an old toothbrush, it will be almost back to new state. Don't dry burn them.
Wicking: Cut flush with the housing. Don't cram loads of wick in to the spring, roll the wick quite loose until it is about 6mm wide and pull it through the spring, there should only be slight resistance. Too little wick and you will get flooding, too much and you will get dry hits. don't be afraid to keep rebuilding until you get it right. When it is set up correctly it works flawlessly.
juice control: This depends on how thick your juice is, the viscosity. If you like to vape VG heavy juice you will always struggle more with a tank. I find the best thing to do is use Aqueous Glycerine. This is VG with 15% distilled water, if you are buying premade juice, just add about 10% distilled water. With my 70% PG juice I have the juice control barely open, with high VG juice that is very thick I open it about 4 turns.
Housing: The housing that comes with the springomizer is fine, I tried the v2+ housing too and it wicked a little faster but not a huge difference, I had to use more wick for the channels. I went back to the original springomizer housing.
Spring resistance: with kanthal I would normally aim for around 1.2Ω but with Stainless Steel I find I have to go lower, this is a thicker wire and seems to take more effort to heat up so I have been running it at 0.8, this seems to be to be about the equivalent to 1.2Ω on kanthal, I don't know the science behind it, just that I need to run SS springs at a lower resistance to get the same effect.
Don't forget, depending where you are in the world, the temperature has an impact on the viscosity of your juice too. Personally I wouldn't use high VG juice without adding a bit of distilled water, its very thick and doesn't wick well in tanks because the air bubbles take such a long time to move down the channels. It's pretty cold here though, maybe high VG is fine in warmer climates but some of the stuff I have bought has only been suitable for dripping.