CF cards - does UDMA make a difference with older cameras?

[MattNQ]

Looking at getting a couple more cards for the D3.
My current cards are older Sandisk Extreme pro that came with my cameras. Some 30mb/s some 60mb/s
Can't say I've really noticed the difference between the cards in speed when shooting .

Now the interweb illuminati seem to say that the write speed of a D3 is 35mb/s. It does support UDMA.

I do shoot sport in raw, primarily because in bright sunlight, it leaves me much more control over blown highlights (which often happens in the background when exposing for players faces)
Netball I'm shooting bursts of typically 3-5 shots then a break until the next play, and in athletics, jumps are 4-5 to get the takeoff, mid-air & landing. But I have found that shooting 8 lanes of hurdles, I'm hitting the buffer limits regularly.

My question is - will I really notice the difference between a Sandisk Ultra (non-UDMA) 50mb/s card and a Sandisk Extreme (UDMA) at 60mb/s on my D3?