I KNOW! The windowsills just don't cut it.
I have been doing seedlings for pretty close to 30 years, at some scale. I only read about WS this year and my daughter wanted to try and start her own seeds this year since it didn't look like I was going to be able to make my annual April pilgrimage to Michigan to deliver a car full of plants to her, but she has no place inside and her hubby was not thrilled with a light set up idea so she decided to try WS. (Of course she couldn't do just a few. I think she said she already has well over 130 milk jugs with more to do for tender annuals). She still has snow so there's nothing coming up for her but I'm betting she will be successful.
Kind of makes me sad she won't need me anymore!
But now I can get her to do seeds for me that need more chill time than what I will probably get here. But you're 8a, I believe I may have moved to 8a also. I think it used to be 7b here. So you're probably the same as I am now. I'll be doing a lot more WS next year for sure!