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[Northern monkey]

would that not be a double spine?

I just don't get that scoop in the middle bit of that slazenger?
It just looks like work, for the sake of it?

The flat spline idea looks much better, not easy to do, but if you could get decent pick up and keep the toe area quite thick, could be a very usable bat
I'm not a fan of big spines, I sanded mine off my laver, and performance was still first class.

[uknsaunders]

I think when somebody puts a shark fin spine on it looks stupid ie. concave the bat to hell with a tiny sliver in the middle for a spine. A decent full bodied spine does, or should, put more power into the shot. I tend to think low spine bats lack a bit of power in the middle but make up for it with a wider hitting area - could just be my perception.

[KIPPERS]

Did you get that from the GN video about concaving?
Personally I think it is entirely about aesthetics.

If you don't have a spine you end up with a club - much like my bat
http://custombats.co.uk/cbforum/index.php?topic=30489.0

personally I think it works just fine!

No I got it from a background in material science.

[KIPPERS]

you certainly don't need the shark fin type spine, The depth of timber front to back is in effect the the spine. Its just basic structural engineering.

[KIPPERS]

And yes it may still hit the ball and feel fine. But I bet it wont last that long.

[procricket]

As neutral a bat as i could come up with

[InternalTraining]

^ Have you net with this bat yet? How does it feel? I love this kind of a design!

[Northern monkey]

What's the toe thickness Dave?
How's it pick up for its dead weight?

Like it a lot

[e4sby]

There is a very very nice crown 'zizi' at b3, was down there on Saturday.

I'm not a fan of the shape but it certainly picks up a couple of ounces lighter than you think. Dave loves his it is certainly not your usual bat design.

[procricket]

 toe thickness around 29mm

Pick up is brilliant

The tour which is similar never had a touch of scooping like this one around the toe area great coverage a great all round bat netted maybe around 200 overs through it 

[Buzz]

John, it sounds as if you are making something like the St Peter's bat shape that Tony Grieg used for a while.

[Mortimer]

im going to make a new bat this weekend and im thinking of making the spine flat. a sort of parallelogram shape. Any reason why this wouldn't work and add more power across the blade?

I may do it on an old bat first to see how it feels.

It was done by SP in the 70s with their Master flatback design

http://2.bp.blogspot.com/-vXnOD3l8zKg/URl_HY5hhkI/AAAAAAAAADs/US3RKfEve0c/s1600/1977+Tony+Greig+St+Peter.jpg

[GarrettJ]

quickly hacked at an old bat

[fabfill]

I just unintentionally made one. Feels like a beast. Will try to get some pics up later