I did a tour of the high Himalayas in 2009 with the company advertising on this site 'Asia Bike Tours'
Small group, Good! Organised but not overly so, Good! All inclusive price, fuel etc paid for ,Good!
As you Know and Have experience of India, you know that any 'plan' needs to be flexible, this lot who organised this tour seem Ok to me and I would travel with them again.
I did see on the route some er 'enduro' groups that consisted of at least 30 riders a luggage truck a Jeep a further Medic Jeep, 3 Medic outriders etc etc. Ok the guys were having fun but a bit on the huge package hols style for me.
I prefer the smaller do as you please unhurried tour.
Have fun whatever you chose.
Best wishes H