XXX-CR metal front pivot block???

[stical]

So if understand things correctly, the following options are out there :

The alloy one from Losi
http://www.losi.com/Products/Feature...rodId=LOSA4148

The aluminium one from Trinity
http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWAX:IT

The brass one from AcraTech
http://www.rcnitrotalk.com/acratech-bulkheads-for-losi/
http://acratech.net/rcracing but they are into camera stuff nowadays

And last but not least the brass one from Ghea
http://www.rymartracing.co.uk/page_1227178132947.html

All different materials and different weights I guess ?

Does anybody know if one of these eliminates the C-clips ?

Cheers,
Erik