Open shove before bubble

[natarish]

i have recently made it very close to money in $100000 guaranteed $109 buy in sunday MTT online.
110 gets paid out of 1050.

im 74 out of 124 left.

i open shoved from cutoff 26K with KJo. i had about 21BB.

Button had 23BB
SB: 75k
BB: 33K

How should i have played KJo in cutoff ? with three stacks behind me that had me covered, and there were no small stacks. to act behind me.

[tedjam]

just open normal 2x or 2.2x
then fold to shove
if its a small three bet id probably fold as they shldnt really be three bet then folding with similar stack than u (assuming u have no reads)
I dont like flatting a three bet but its not the worse option
I think its too big to jam into simialr stacks, I mean your not alwayst dead( u still should have 40% equity over many calling hands even if they call but there is value in cashing I would rather use ur stack (21bb) to three bet all in over late opens rather than open shove

[natarish]

makes lots ov sense thanks

however, what if i have around 15-18bb and i have the case scenario.

[tedjam]

under 15 shove ( would like some feedback from others in the value of cashing though)
15-18 i shove however your getting close to the bubble so i dont hate open folding
if ur playing a lot of volume the min cashes do add up!!!