I am not sure if this helps or not, but it probably depends a lot on your use case.
I have both the stihl brush cutter (straight shaft with bike handles and back pack straps, and separately I have the stihl pole pruner. They are both great tools and when you need them it’s helpful to have in demand.
I considered a combi (that’s what I went to buy actually) when I bought them. The reason I did not come home with the combi was that the unit I demoed it felt like their was some sloppiness to the heads/individual implements vs the individual tools which everything was fixed and solid…and in my mind I did not want loose tools at my feet or overhead. The dealer suggested what I was experiencing was not normal and something needed to be fixed. They genuinely tried to not sell me two tools. Right or wrong I went individual tools.
that being said I use the pole pruner much less compared to the cutter. Looking back I wish I was patient and would have asked to try another unit even if I had to wait a few weeks.
If I thought the implements connected securely I (think) would prefer the combi.
As far as the brush cutter mine has a guard, but that only holds down some of the debris. (If you plan to use the cutter with shorts and crocs on, you may have unpleasant experience
![Winking face :wink: 😉](https://cdn.jsdelivr.net/gh/joypixels/emoji-assets@5.0/png/64/1f609.png)
). Sounds like you have the gear so I think you would be fine with whatever you choose. I think it would be difficult to catch your foot with the tool…I’d say there is a better chance your shaft is too long and you have to adjust the handles down to your height(assuming the combo has the bike handles, but I don’t know that).
good luck. I hope this helps.