Circular interchangeable needles


#1

I need a 2.75 and 3.25 circular needles and 2 the connectors of 40 and 60cm. As I need to get all that I thought why not getting a set, but can’t find any that has both unless I get it in aliexpress… any experience with those? I believe I might need to use the 40cm/60cm with both needle sizes for the pattern (https://www.ravelry.com/patterns/library/rainbow-sweater-7) …

So far I’ve only knitted with knitpro, but the aliexpress set is 18€ only…though most likely ill need to wait a whole month…


#2

I have not purchased anything from aliexpress.
Have you tried going up .25 of a size on a swatch?
How far off was the gauge?