New Bid M2 all script, page-7

The CGT rollover relief is a great incentive for shareholder who believe in the "bigger story" of what is going on here. It will vary from person to person, but the CGT rollover relief adds quite a bit onto the $10 figure compared to an all cash offer at $10

If you bought in only a couple of months ago you are probably sitting on a $2 capital gain at a price of $8.66 which is worth say $0.50 per share in tax liability. If TPG lift their all cash offer to $10 (to numerically match MTU) that capital gain liability could get up to $0.85 per share. So an all cash offer of $10 is a whole lot worse than the same offer that MTU are putting forward.

Do your own research and make up your own mind.