Back when I was on sema, I split my doses from the start — the compound telemed had set it up that way to blunt the sema side effects. Splitting did make the side effects milder, and it also smoothed things out a bit so my appetite wasn't swinging so hard in one direction.
With reta, I don't split. That said, whenever my appetite starts creeping back up, I'll still add a small sema dose (.5), and that's usually somewhere around every 7-10 days. So the sema ends up doing the same job — taking the edge off ahead of my next reta dose. On top of that, I'm in maintenance at the moment, letting my skin catch up to the losses, so my only goal on the scale right now is to hold steady. That's why I'm not looking to raise my reta. If I were, I'd probably drop the sema bumps and just split the reta instead, since reta is by far my preference.