OK guys, thanks for all the info, advice and words of wisdom. Generally it seems to be a split decision.
So heres the rub... Ive paid my money and made my choice!
Ended up going for the Stihl FS 94 RC brushcutter and the Stihl BG 86 C blower.
Why? Well it came down to a few simple things...
1. The local Stihl dealer is open 7 days a week, the local Honda dealer 5.5
2. Brushcutter is lighter than Honda
3. Blower has nearly 30% more volume of air flow and flows faster
I ended up spending $50 more on the 94 RC as that supposedly has the most modern of the engines in the brush cutter range. Choke is more like a switch. Turn and push, pull (twice this morning from cold), let it run for 10s and then press throttle & away you go. Pressing the throttle automatically releases the choke. Apparently you can press the prime bulb thingy all day and it won't flood it.
The blower has this choke mechanism also.
All in all Im very happy.
However, the guy in the shop suggested that I should swap out the auto-feed wire thingy that comes as standard for the tap-to-feed unit - He said the auto-feed was a PITA. This was a no-cost thing, so I did, but after using it today I think I'll be going back to the shop tomorrow and getting my auto-feed back. I do like the tap to feed when it works, I found myself very quickly listening to the head, tap, listen to the change, tap again if need be etc. Its great... when it works. The problem I found was that the bloody thing keeps getting stuck and wont feed the nylon out; I was constantly taking off the head, un-jamming it and putting it back together again.
The wire in the push-to-feed head is as wired by the dealer, not me, so I assume its spooled on properly.
I understand that the auto-feed unit can only use 2.4mm nylon whereas the tap-to-feed unit can take 3mm at a push, 2.7mm easy.
As for the increased noise of the 2 stroke over the 4, well I always use ear-muffs anyway so it doesn't really bother me.
Finally then, any thoughts on the push-to-feed? I know people have said its a PITA, but nobody has said why. Is my experience today the norm?
Thx
J