Reply to VCI Arcade Mod - Sanwa or Seimitsu??

I'm planning on hacking up my VCI100SE to give it some DECENT cue point triggers. I now realise why Ean came up with this mod to the vci. Any serious amount of juggling and your fingers/wrist start to ache BIG time. Anyway, enough waffling ... I'm gonna drop the stock buttons and replace with Seimitsu triggers. Obviously, the established route is to use Sanwa triggers but (a) I like to be differant, (b) seimitsu do a 24mm translucent version which can then be further hacked up to give led feedback, and (c) because I can!

My real question i guess is, has anyone tried the seimitsu 24mm range and found them to be harder to work than the Sanwa type. Also, on the Arcade overlay, is the arcade button cutout size the same as the button cutout or the outer ring?

Any thoughts / suggestions appreciated.