Thanks for all your responses, and you've all put my mind at ease - I was concerned that I wasn't doing it right. But having read these posts I realise that that's complete BS - there isn't a 'right' way. You've all made a lot of points which I agree with which I'll summarise here: 1. Modelling in Bryce is fast and you get quick turn around with your ideas, 2. If you can't do it in Bryce, drop out to another app and do it in that, 3. The only 'real modeller' is the person doing it - he/she could edit DXF files in Notepad if they really wanted, thats up to them 4. There isn't a 'right' way - just a way thats right for you, So - I'm going to stick with the way I'm doing it, and feel happy about it too :o) When I'm further on in my Time Machine, I probably will replace the 40-odd lattices (1024x1024 each) with Wings3D objects to reduce the poly count, but 1. I can't be bothered, 2. they look fine, 3. my machine copes with it no problems. electroglyph made a good point - there are plenty of apps, bantam grass, windome, spiralizer, elefont, that are free and do their specific job extremely well, and I have no problems with this approach at all. Plus I don't have the money for those other apps LOL. Thanks again :o)