I spoke to the OP on Sunday and explained what he should do, I asked him to call me back if it did not work, I heard nothing so I am guessing the problem solved. As for cleaning I would say its as easy or as hard as any other oven to clean, the oven floor comes out which makes it a little easier, the door comes off and goes back on with ease so again makes the job a little more tolerable.

The Verona for $3.5k or the Capital for $1.6K? The large oven in the Verona is 2.4 cu ft. I think too small to be really usefull. Both have 5 burners. Capital the 25k btu wok burner while Verona has a 16k btu power burner. I think the only real advantage to the Verona is more cooktop space to maneuver mulitiple wide pots. I would inspect the Capital and short of major dings or scratches buy it. And buy a Breville XL Smart oven .8 cu ft or Cadco Half Oven 1.75 if you really want that secondary small oven.You get the best of both worlds;a large gas oven and a small electric oven Your current hood is 600cfm? I think that is plenty for the Precision.

After owning a capital Precision 60" gas self cleaning range since 2008, I would say, AVOID CAPITAL. I was the biggest capital fan because I thought they had the best and most innovative product. Upon delivery and installation, we were burning everything we put inside one of the ovens. We went back and forth with Capital for months, they sent out repair people who swore there was nothing wrong with the oven. We were even blamed for not letting the oven warm up for enough time before we put our food in. We had to threaten them with legal action before they finally had a proper technician fix our range. As the years progressed, our issues continued. The rotiserrie went out. They sent the parts and I fixed the motor myself. Our grill always heats only the left side. I had a gas leak inside the range and Capital did not respond to my requests for help. I had to get Trevor from Eurostoves involved and then they responded. The absolute worst is they offered to fix my grill and wok burner (useless) for free as long as I paid for shipping both ways. A few days later, they sent an email and said, they were wrong when they told me they would fix it for free and would charge me for the repairs. I AM DONE WITH CAPITAL.

Should I confess? I cleaned the oven on our Viking about three months after I got it and then not again for the next 15 years of 5x a week use. As far as I can tell, nothing bad happened. Stuff that spilled or splattered quickly burned off while preheating the oven for pizza leaving a residue that is easily wiped out. The oven developed an even "patina" that was not unattractive, a pretty uniform brown. Time that might have been sent worrying about what the walls fo the oven looked like was productively spent elsewhere, no exposure to toxic chemicals, and no one but me ever came around to inspect the appearance of the inside.