Moret Motors Spindle kits

Does anyone have any thoughts on Moret Motors vs G-Penny when it comes to spindles. I’ve come across a 1.5kw kit at They state their runout is 0.005mm where as the GPenny one is 0.01mm, They are also cheaper than the GPenny unit but similar in most other ways. Is the runout figure realistic in what is essentially a hobby product?