Some Updates on Delta Promotion

1 For SPG transfer, the best way is to transfer 20000 SPG to Delta per day
because DL system can not accept more than 32K Hotel transfer per
transaction, 20K SPG will get u 25K miles, which is the best value

2 AMEX credit card signup bonus may not count because those miles will be posted as Bonus.

3 AMEX MR transfer doesn't count