Do these figures look OK?

[#1]

I went onto the BT Speedtester site. I don't often do it because last time I tried it didn't work with FF under Linux but I had to boot into Vista so I thought I'd give it a check over.
    Your DSL connection rate: 4384 kbps(DOWN-STREAM),  448 kbps(UP-STREAM)
    IP profile for your line is - 3500 kbps
    Actual IP throughput achieved during the test was - 3057 kbps

I ran a test on My Broadband Speed and it reported  3233 kbps (404kB/s) 
My line always syncs up at over 4000 kbps so should my IP profile only be 3500?

[#2]

Full list of appropriate IP Profiles:
FROM      TO            PROFILE    MAX THROUGHPUT
60 kbps  256 kbps  135 138 Up to 135 kbps 
288 kbps  384 kbps  250 256 Up to 0.25 Mbps
416 kbps 544 kbps 350 370 Up to 0.35 Mbps 
576 kbps  832 kbps  500 512 Up to 0.5 Mbps
864 kbps  1120 kbps  750 768 Up to 0.75 Mbps 
1152 kbps  1408 kbps  1000 1024 Up to 1 Mbps
1440 kbps 1696 kbps  1250 1280 Up to1.25 Mbps 
1728 kbps 1984 kbps  1500 1536 Up to 1.5 Mbps
2016 kbps 2240 kbps  1750 1792 Up to 1.75 Mbps 
2272 kbps 2816 kbps  2000 2048 Up to 2 Mbps
2848 kbps 3392 kbps 2500 2560 Up to 2.5 Mbps
3424 kbps 3968 kbps 3000 3072 Up to 3 Mbps
4000 kbps 4512 kbps 3500 3584 Up to 3.5 Mbps
4544 kbps 5088 kbps 4000 4096 Up to 4 Mbps
5120 kbps 5664 kbps 4500 4608 Up to 4.5 Mbps
5696 kbps 6208 kbps 5000 5120 Up to 5 Mbps
6240 kbps 6784 kbps 5500 5632 Up to 5.5 Mbps
6816 kbps 7360 kbps 6000 6144 Up to 6 Mbps
7392 kbps 7936 kbps 6500 6656 Up to 6.5 Mbps
7968 kbps 8096 kbps 7000 7168 Up to 7 Mbps
8128 kbps 9087 kbps 7150 7320 Up to 7.15 Mbps
Your IP Profile (3500) matches your connection rate (4384) so... i'd think that looks right.
The thoughput looks good for the profile.

[#3]

http://www.kitz.co.uk/adsl/IPprofile.htm for more

[#4]

Thanks
Nice to know that something is behaving itself 😉
Edited to add:
A couple of minutes after I originally posted this message my router did a random reboot and has now connected at over 5000K which it just wont be able to sustain into the early evening. Technology, don't you love it!

[#5]

http://www.plus.net/support/broadband/products/faqs_and_guides/dslmax_guide.shtml#Sync