Hey there ! So ive started making mt own e juice and i find it to be bland and not sweet enough . I have a evic vtc mini (75w) and i generally build .5 ohm dual coils with 24g kanthal (and smoke at44-50 watts) would ethyl gunk up my coils faster than sucralose ? And how much percent of each would i have to use if say the ethyl was 10% , and the sucralose was 15% (in concentration)?
I think you have that Backwards. Sucralose will probably gunk up your coil Faster than Ethyl Maltol (EM).
I don't use EM because I can't make something Really Sweet before it starts to get this Meh Chemical Taste to it. There is Only so far you can Go with EM.
As to How Much Sucralose to use? Hard to say. But a LITTLE Goes a Very Long Way. I would try 4 Drops in 30ml of Flavored e-Liquid and see how it taste. If it Isn't Sweet enough, just add a Drop, Shake, and Vape. There is No Steeping Needed with Sucralose.
BTW - I would Only Suggest using a Sucralose Sweetener found where you but Vape DIY Supplies. Like The Flavor Apprentice (TFA) Sweetener.
And Don't use Grocery Store Sweeteners that are Sucralose "Based". Sucralose is SO SWEET, that products like Splenda are chucked full of Bulking Agents to increase the Volume you use.