If you 3-bet to 3k your oppo will only play the very top of his range. If you make it 1,825 villain can still push but also he plays a much wider range. I don't think we're deep enough to want A-9 folding to our clearly pot-committing 3-bet. You can c-jam lots of flops when you miss and play with one hand in the air when you hit.
Surely nothing good can ever come of open shoving a little over 8k into a 4k pot no matter what the flop is unless we have a solid read that the villain can stack off with worse to such an insane overbet?
Don't know how the question relates to my post Boba but I agree with you anyway.
Sorry, misread your post, I thought you said reraise to 1800 and then jam the flop, didnt see the c-jam. Thought you were advising a 2x the pot open shove lol