That was my first thought... well actually it was my second, the first being that you have two great new bikes, save getting the third till you're a little bored with them. I hope you don't take that the wrong way, just I think you need to ask yourself if you're a cyclist or a bike builder. A few thousand miles on what you have might be a better guide to what to get next than anything anyone can post here. Go MTBing on the Vaya, it looks up to all but the most technical, certainly that's the way Salsa are selling it.
Just a thought...
More than just a thought sir, right bang along the lines I've been thinking and I agree that time would be a great leveller, but my neighbour is going out on the trails now. Yes, I could go out with him on the Vaya, I could even put different tyres on it, but it goes against my instincts, crazy as they are. To try and put my muddled thoughts into type, in order of bike importance:-
Bike1 - as in the main bike, the go to machine, the one that I shouldn't be without - that's the Vaya(was the CrossCheck) - primary function is commuting/utility but nice to be able to use on longish social rides as well, hence the idea of moving to the A11 from the I-9 - but this bike is viewed as the primary transport vehicle and shouldn't be exposed to risky activity(ie MTBing) that could take it off the road.
Bike2 - is a backup, can perform the functions of Bike1 when needed but can also be left outside shops etc as an all round utlity vehicle - this is the Dawes, but I'm aware that it falls short of the spectrum of capability that the Vaya offers - however this is the bike that I'd be most prepared to expose to risky activities such as MTBing
Bike3 - really not in the equation, this is for fun only and any backup potential is really coincidental - this is the Burls(was the Giant) but, from a practical perspective it may as well not be in the equation - it could be any bike, Bike3 is for pure indulgence
So I'm happy with Bike1 as a frameset/bike concept, but have always had plans to change to the Alfine11 as I want the alternative shifter options over the twist grip of the I-9. But that's no real change, all we're talking here is the hub gear rear wheel altering, the rest is fine.
Now I get that you think I have two great new bikes, I agree, I do, but I also have two new bikes that replaced two existing bikes(that weren't very old) that I was far from unhappy with. Put another way, I had my stable of three and then set about refining that stable using my personal preferences combined with the basics that I've learned since starting riding. In that sense I've upgraded Bike1, now the Vaya, and upgraded Bike3, now the Burls, though, as I've mentioned, on a practical level Bike3 doesn't really count as it's for fun first and foremost.
That leaves me with a view around MTBing and how much versatility I want/need in Bike2, being the spreadsheet sort of guy I am, I had this little idea where 3 bikes were needed, a main bike, a general backup bike and a fun bike. My original view was that if I ever wanted to do any MTBing then it would need to be N+1 and increase from a 3 to a 4 bike stable. But that goes against my utalitarian side, I already have the Burls which is sheer indulgence and I'd rather stick to 3 bikes than go to 4. I fully appreciate that a serious MTBing addiction would force me to a 4th bike, at least. But it may never go beyond some light trails type stuff, in which case increasing versatility around Bike2 makes more sense than going full on with a fancy MTB. If it does get more serious then I can always go up to the 4 bike stable, I won't have lost anything, but I will have a more versatile backup bike.
I have a Spesh dealer down the road from here and am having a look at their wares this week. I suppose it really comes down to 2 options:-
1. sell Dawes and buy hybrid with more offroad potential but still road/commuting ability(the Crosstrail is one but there are many others like the GT Transeo mentioned) - if the MTBing bug bites I can then get a full on MTB if need be and keep the hybrid as a general bike. So I still go to a 4 bike stable but I have improved the scope of Bike2 in the process.
2. keep the Dawes and just buy a full on MTB to make a 4 bike stable.
At this point(if you're still awake) I'd really appreciate some views on bikes like the Crosstrail and GT Transeo and what they're actually capable of. I mean I'm not shy of taking the Dawes or the Vaya over rough stuff when need be. The Vaya in particular is quite capable of handling pretty harsh ground. Are things like the Crosstrail enough of a step up or should I look for more 'full on' MTB potential?
If I buy a bike(and I think I will be) would I be better wearing out parts before replacing/upgrading or should I flog them off when new and aim for the mongrel type bike I want? I'm thinking here around replacing the sus forks for straight blade, sus corrected, steel and putting on my own preference of disc brake calipers, etc, allowing me to use a bullhorn bars setup I have in mind.