i tested several settings and kernerls in this kitchen (stock, r22 ext3, r22+r23 ext4) but the boot time forced me to search for other roms. Sorry but several minutes is not normal...
I just found http://forum.xda-dev...d.php?t=1254359 which based on 20i as well and the start time of that rom is awesome.
Paul, maybe you can test it to find out where the problem of your version is?
But for all 20i versions i have problems with switching 2g/3g, anyone else too? Maybe it's baseband problem or because i use prepaid card "bildMobil" and with installing new rom
I always have to add new APN myself (it's using vodadone, but on other link: name: bildMobil / APN: access.vodafone.de (nothing else has to be set)), maybe 20i try to use
1st one in list even my setting is chosen. Switching setting to wrong and then back to correct APN solves the problem but is little bit annoying :)