I think this is -EV

The reason for this, is that you pay 12% of the cost of the tourny .

If you place in the bubble, the house pay you and you have paid 12% for nothing.

If you place in the insurance paying bubble of 10% you get tourny fee back (about 90% of what you have paid)

So if you where on average finishing ITM 15%

New bubble 10%

Nowhere 75% It would cost for $10MTT X 100 with insurance $1120

Extra return would be 100 so net loss of $20

Might be worthwhile if you won a fair size tourny ticket and you where playing outside your comfort zone, but if that is the case, sell the ticket.