Thanks for the comments chaps

I am not too concerned with the 4-way (on this panel), since I am using J-Sticks on my CP #1 - I am planning to have a 'trap door' on the underside of the CP in order to reach in and switch between 4/8-way.
I like the idea of buttons on the right too, but I am a little pushed for space on that side. I don't want to have any buttons too close to the front edge of the panel because it wouldn't allow you to rest your wrist on the panel (I do this).
The reason I want the paddle, is of course for paddle games, but also for the 270deg driving games. I really like using the paddle for these games, OK so it doesn't return to the centre but apart from that it's great. I am going to have a dedicated 270deg wheel panel (& a 360deg one), but I might want to play the odd driving game without swapping panels (or until I get to building the driving panels).
Yes, the top-fire stick position I am a little concerned with. I originally put it towards the front of the panel (with the analog stick further away). I decided to swap it round as again I'd like to be able to rest my wrist on the panel when using the top-fire stick. When using the analog stick there is no need to rest your wrist on the panel due to the handle being quite big / far off of the panel.
Really I added the top-fire as a bit of an after-thought. I was going to try to get away with just the analog stick, but I know I will not be 100% happy with this for the digital stick games.
I will perhaps put the actual controls on my life-size printout of the layout, and try to move them around a bit to fix some of these issues...it's more difficult than I first thought

Oh, and I will do a filter to see what double stick + button games there (BattleZone etc) & see what I can do about those....I suppose I could use my CP #1 j-sticks and use a pedal for fire
