For experimentation on my next corned meat, I might try increasing the injected/pumped time to 24+ hours, then moving to the covering brine.
For many of us... injecting or flavor brining, dry brining, curing brines and dry curing are proven methods for various applications. Phosphates were something that took me a little while to experiment with. Commercially, they were in a lot of products I consume. The one product I take the exception with are 'wet' scallops which are dipped in phosphates then frozen.. They hold so much liquid, it's near impossible to skillet sear them. But, phosphates are in plenty of products we do enjoy. And using them at home is a different platform than the processors use (or restaurants, or competition BBQ cooks) to enhance their products
Well I ended up doing it a bit different. I weighed the weight of the water/broth and meat, heated the water/broth and added 3% stpp and salt, sugars and let cool then added cure. Injected with 10% then into bath for18 days. Turned out ausome next time I'll go with 4%. I used 1 scant cup salt,1/2 cups of both sugar and brn sugar and 1oz cure, 2 boxes kitchen basics salt free vegy stock.might cut sugars and salt back a little next time. Thanks to all and especially this site, best forum by far.