You just have to go here,
https://www.rollitup.org/grow-journals/234683-my-first-grow-diy-dwc-26.html
to Post # 258 and look at the pics.
You will find pics of a seed grow started in plain DWC, no feeder tubes, and comparison pics of seeds started at the same time WITH Feeder tubes and water pump, that he did as an experiment.
I still plan on using a submersible pump and hub with lines to each net pot. Honestly, my setup is going to be almost exactly like the Bubbleponics kit I ordered except for a larger reservoir, possibly 6" nets (depending on if I go 14gal or 31gal), and more/larger air stone(s) or wands.
I guess I have the advantage of having the SH Bubbleponics kit here while I'm building mine. Of course, I'm paying for shipping back to them to have this advantage lol. I think in the long run, it will be worth it.
I'm investing in a 400w or 600w HPS light with switchable HPS/MH Electronic Ballast and air-cooled hood. I might as well go all out and go with a bigger hydro kit. I think the nute stuff I can figure out with the help from the guys down at Nuggetry where I am enrolled in their growing course.
I've had doubts about the SH kit since I found out it's not even gonna take up half my closet and is only 6gal. I'm the type of person that if I don't return this kit right now and make the one I want, it'll bother me until I finally give in and do it.
My "finance dept" agrees with me and is willing to pay shipping back to SH and pay for supplies to build my own.
I know you mentioned, you're older and like the SH kit because it's easy. I'm only 25, I work full-time from home and have way too much time on my hands (I'm actually on the clock now). I'm not usually big on the DIY stuff but this doesn't seem too hard, If my heated Xacto knife doesn't work, I'll get a Dremel or cheap Drill. I've been meaning to get one anyways.
My cousin once told me when I was trying to decide on an LCD monitor, "(have) No regrets..." Well, I'm already regretting the SH kit and it hasn't even arrived
Not saying there's anything wrong with the kit. It's just with all of the knowledge and the great DIYs I have found, it's just not for me. I will still be doing a write up of my build and journal of my grow to help others but I won't be an official Bubblehead lol