"I only ever held stocks in super with cash...kept the lucrative property outside sure I may pay a bit more in income tax, but I get larger discounts on the CGT of 50%, versus only 33% in super"
For anyone on the top rate this means you will pay CGT at about 24% as opposed to 10% in a SMSF.
If the property was sold after conversion to a pension, then the SMSF would pay zero tax on the gains. Whereas currently you have a liability for tax when sold. Assume gains in the hundreds of thousands, then that will be a big whack of tax??