Grounding

Hello. Hoping someone can clear up my grounding setup on the car.

Now, in the course, it states you should ground the block to the chassis via a single point. Simple enough. I have run my car with a large earth strap from the block to the chassis rail.

In other sources I have heard its best to run two earth straps from the engine to the chassis, mainly for redundancy, since if one fails, you still have a car that runs. Is this a good idea. I have also seen it suggested as a good idea to run a ground from the block to the chassis rail and a ground from the head to the bulkhead?

My other question, again based on other sources, is that I should have a large ground strap from the engine to the chassis (obviously) but that I should also have one from the battery to the block. Since my battery is mounted farther away in the interior behind the passenger seat. This mainly so that you do not get high loads through the chassis when using the starter and to reduce voltage drop leading to better starting.

Can anyone confirm the best practices in these cases?

Thanks a lot.

Block is RB26, so heavy steel, body is steel monocque.

So, I found the star point earthing webinar. And from that it would seem that its not a requirement for the battery to be wired to the block also. I knew this of course because I had run my car like this for a long time.

However, I always felt the cranking could be faster. Would I see any benefit from doing this anyway or is it likely that I could gain as much from changing to a thicker gauge strap from block to chassis?

Since I am completing an entire nut and bolt restoration and overall on my entire car, I shall be making sure all grounding studs are large and very clean.