Hiding JBP Graft Line

[conifer_bradley]

I ordered a JBP earlier this year online and I was a bit disappointed to find it was a grafted tree. Healthy otherwise though.

I'm wondering if there's a way to "hide" the graft line? Crossed my mind to try getting roots to grow above the graft line and lettings those grow down over this spot. Is that possible? Any other ideas?

Little more about the tree, I don't know what type of pine the root stock is, but above that appears to be a roughly 3 year old cutting. I'd guess a branch from a larger tree given the size of it.

 

[Shibui]

It is unusual to graft ordinary JBP so maybe you've bought one of the cultivars? The lines on the trunk do look vaguely like a graft scar but something not quite right IMHO. I'm suspicious that's just some lines on the trunk rather than a graft. Can you take a picture from the other side please. I'd particularly like to see the bit at the top of the marks - just hidden by the wire.

If it is grafted, the graft is very neat so I would probably not worry about it unless it starts to look bad. Though grafts in bonsai have a bad rep, the vast majority actually disappear as the trunk thickens. There are many good grafted bonsai but they are not recognised because the graft is now invisible.
Normal graft propagation for JBP would be to graft a pencil thick (1-2 year old) shoot onto a pencil thick (1-2 year old) seedling and then allow it to grow for a couple of years to thicken. I don't know anyone who uses older or thicker branches for grafting.

Layering is the usual way to get roots above a graft. After new roots form the trunk below is removed and the tree grows on the new root system. Standard JBP can be layered but I'm not sure if any or all of the cultivars root easily so layering to get new roots above that graft could be a lottery.
Otherwise it can be difficult to get roots from JBP trunks.

 

[Potawatomi13]

As I see this it's plainly a graft but I have the same questions. What cultivar is it that it's grafted? I agree that unless it is a cork bark variety then the graft will disappear within a few short years. Also be very careful bending anywhere near a graft as any stress on the joint can cause the graft to fail. Can we see the rest of the tree please?