bucketgirl,
I use Lucas Formula with "Hardwater" Micro in conjunction with my hard well water.
And liquid drops are good enough for me to test PH.
I need the same amount of PH down every time for making nutes. Once dialed in I dont need to look at the PH.
My Well water is very alkaline and hard but the GH Hardwater Micro works good with my water.
The PH of my water starts off at like 8+ and I add PH down acid till 6.0 or so
You said your using Spring water, so you can get away without using a ph meter. But if you get sick of buying water think about the Hardwater Micro and Well water if you have a Well.
Yea I start my newly transplanted clones on a 1/2 strength 5-10 lucas formula and go up from there.