I've got a Thermocore coming. With my original oven, I almost always use it to RTL with a torch. I have no experience with the Wand but I'm thinking of picking one up now that my Thermocore is coming. Can you detail a little how you're using it or how efficiently it can RTL?
I'm eyeing a Wand for when I want to take the Anvil out and it's windy or bright or I can't just use a torch, so I don't mind it taking a LITTLE longer for the convenience of being able to bring it where it's inconvenient to now. I just want to know how long I plan to wait to get close to an RTL or dark extraction, and how many bowls in that range I'd be able to run through on a battery charge.
Head on over to the Anvil thread, because there are numerous discussions on thermocore and heating methods. 2 seem to work well for a RTL effect: set the wand timer and ride out the timer, disregarding the clicks. OR: preheat the oven, drop in the bowl (don't screw all the way down) heat until click. Obviously, if you preheat the oven to higher temp, that will give you a darker roast. I didn't like the OG oven with the wand, but now, with better composition and more mass, it's ace.
I add that I do both, Wand (easy to take, out of doors, if I'm travelling) and torch (for the oomph effect). The effect with induction is different, I believe due to less radiant heat in the heat up phase. It's why I preheat, to get that radiant heat going.