I went through the guide long ago to help convert. I followed instructions here:
www.techpowerup.com
I moved to FreshTomato a year and a half ago because I was under the impression that I would need to SSH in every time there was a firmware upgrade upgrade available, I'd need to SSH in again. Would I have needed to do that? Or would subsequent Merlin updates have flashed in the GUI quick and easy?
I'm asking now because running into speed issues with FreshTomato ... I just upgraded to gigabit speeds but the router is topping at ~200Mbps. I get a clean ~900Mbps direct to the modem.
Would it be possible to flash Merlin 384.19 directly from the FreshTomato GUI?
Help is appreciated.

Asuswrt-Merlin on converted TM-AC1900 : Problems, upgrade path to 384.6
Per SNB forum: https://www.snbforums.com/threads/release-asuswrt-merlin-384-6-is-now-available.47941/ "People that have TM-AC1900 are going to have trouble flashing. Even if they never did before. Asus has implemented new hardware checking and that device will not update on account of it. My...

I moved to FreshTomato a year and a half ago because I was under the impression that I would need to SSH in every time there was a firmware upgrade upgrade available, I'd need to SSH in again. Would I have needed to do that? Or would subsequent Merlin updates have flashed in the GUI quick and easy?
I'm asking now because running into speed issues with FreshTomato ... I just upgraded to gigabit speeds but the router is topping at ~200Mbps. I get a clean ~900Mbps direct to the modem.
Would it be possible to flash Merlin 384.19 directly from the FreshTomato GUI?
Help is appreciated.