boogieman
It don't mean a thing if it ain't got that ping.
Good advice.Contact Tweeten Fibre Co, ask them about the dark chalk marks, they'll tell you what lights they recommend so rhe chalk marks don't show up.
In my home table situation I have several folks who come over and I'm not about to get anal on what chalks they use. I think of the 10 or so regulars about 5 use blue masters, a couple use predator (dirty stuff) and whatever random chalk. They are all blue, I'd have to draw the line at red! It's really not an issue, the cloth comes really clean when it gets vacuumed. When it's ready to vacuum, the chaIk doesn't show up as black with my lighting, just dark blue. I could go much longer but I just like to keep the cloth in tip top shape, it plays closer to new when it's clean.
I don't really have the black looking marks, but my buddy does. He's using a florescent tube, I'm using LED bulbs, like the type you use to replace a light in a lamp. I honestly forget what they are, I started with the reveal line of lights but one started flickering (bad contact) so I just put in some random cheap one I had on hand on the bad bulb. There's 4 bulbs so I just put the new one in every other one. They actually look really good. I should buy the reveal again but in all honesty I'm not bothered by it and with the 4 lights you don't really notice any color variation.
https://www.seyberts.com/master-chalk/master-sky-blue-chalk-1-dozen-chalk/ I'm sure you can get it much cheaper in a gross online. That should be better as far as not showing as dark marks on tournament blue, but RKC is correct, lighting has a lot to do with it.Masters chalk for me, doesn't really bother me, I just vacuum it up every few days of use. I do trust what is said, thats why I said, learn something every day. Always wondered why the chalk trails looked so dark in comparison to the color of the chalk. Will probably have to recover my table in a year or so, and may go with gray. Friend of ours has gray, and when we play at her house, with her gray chalk, the table seems to stay really clean.