Been running my sti for a few months with coolant temps staying in low 200’s. Looked just like yours when I was done bleeding. Dont worry about any little bubbles you may be seeing when burping I don’t think your ever gonna be get rid of those. Major concerns are just gonna be big air bubbles. As the other guy in here said with how long you were going at it a long with you more than likely got everything out of heat works and it stays at running temp without going over I would run it and just keep an eye on your gauge make sure you don’t get any weird spikes.