Best city to buy liu bao in Malaysia?

I will be travelling up the west coast of Malaysia from Singapore, stopping in Johor Bharu, Malacca, Kuala Lumpur, Ipoh, Penang and flying back from Langkawi. Naturally I would want to buy (and taste) some Malaysian-aged liu bao. From browsing through the photos of tea shops listed on Google Maps, liu bao seems to be most prominently displayed in tea shops in Ipoh, whereas in the other cities I tend to see pu-erh.

Since I will be in Kuala Lumpur first, I wonder if it is worth waiting until I get to Ipoh to buy liu bao? Will the selection be wider there?