Weld subframe connectors loaded or unloaded?

Just did mine over the weekend. I used 4 jackstands, one at each frame portion just in front of / behind where the connectors were being mounted. Checked my doors while it was sitting on the stands and the strikers were pretty much dead nuts in the center of the latches. Door hinges are in decent shape as well and don't appear to have much movement if you try to lift the rear of the doors with them open. I went the 1.5 x 3 x 0.120 wall homemade tube route with some angle iron on the front to sit against the bottom of the front rail for a little more weld area. No one will accuse me of being a welder in my free time by any means, but they seem to be in there solid enough. Only one test drive and commute so far, but car seems a lot flatter through turns and more settled over bumps. Haven't opened and closed the door enough to have a real good comparison, but when looking close after first setting the car back on the ground the strikers just skim the top of the latch now, so there is definitely still a little bit of sag in the car, even with connectors welded in. It does feel more solid even just sitting down in the car, like when you first "fall" into the seat. Car even seems quieter driving down the road, so kind of wishing I would have done this a long time ago.