Mainly experience, I use the Indica on a weekly basis (for my semi-stealth needs). When on road trips, I have even had success getting 1 or 2 solid rips with my Silicone Adapter and a PNWT (DHgate Knockoff).
I forgot that you don't have the spacer. I suggest you fill the oven, then use something to gently tamp it down, and load more herbs.
The key to optimal vapor production with a conduction vaporizer is to allow heat to 'conduct' through the load (this requires contact). If you don't compact the load, the core of your load will never reach the set temperature.
The trick is finding that balance between too compact, and 'just enough'.
I forgot that you don't have the spacer. I suggest you fill the oven, then use something to gently tamp it down, and load more herbs.
The key to optimal vapor production with a conduction vaporizer is to allow heat to 'conduct' through the load (this requires contact). If you don't compact the load, the core of your load will never reach the set temperature.
The trick is finding that balance between too compact, and 'just enough'.