I use the same one. I have been making starters successfully from my frozen yeast bank with yeast collected over 6 years ago. I freeze 5 ml yeast in 5 ml glycerin and 10 ml water.
I use the K. Troester method of aeration on a stirplate. It takes over a week with all the steps, cold crashing and decanting.
I would start with a 250 ml starter at 1.025. After that increase the size and the gravity until you last step is what you need for the wort at 1.038 to 1.040 SG.