Agree with others. Since your CYA is 70, using any more tablets right now will only drive your CYA higher, making you maintain a higher FC and using more testing chemicals. CYA 80 is the suggested max for SWG.
Don't buy more tabs, and save the dry ones you have left for when your CYA falls below 60 or when you will not be home for days. Don't add more to the floater, let those in there dissolve, then remove empty floater.
Best to stick to bleach/chlorine and simply find the lowest cost and/or freshest and/or most convenient source. One time investment of calling around and then you've got your stock up trip every so often, as long as you have a cool dark place to store it. I have 6x 2.5gal refillable jugs, which is cheapest for me in FL, but in some areas, the 1 gal non-fillables are cheapest. I'd at least give the ones mentioned above a call.
You can buy a couple of cal-hypo shock packets (available at walmart or pool stores) to have on hand in case you don't make it to the bleach store. You should avoid using them when you have bleach, as they will increase CH, but think of them as a safety net. If you never use them, great! They stay good for years and years if stored in cool/dark place. This is the only solid form of chlorination you should consider using until CYA falls below 60 in my opinion.
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Your tests look great! How is the water looking? Having to add much bleach or the SWG taking care of most of it?