Master Chef soil and hydro are way different when it comes to pot sizes. If you are using 2 litre bottles for flowering in soil that is way to small. I wouldnt go anything smaller than a 3 gallon grow bag in soil.

As for the systems you are asking advice on. Both of them look like cheap p.o.s. to me. The first one especially. General Hydroponics makes a system similar to those and have heard nothing but good things about that system.

If you want to do an SOG why dont you just get a flood and drain with rockwool cubes. Seems to be what most people use.

Hopes this helps out a bit.

Peace