Pot growers in rental: Opinion? (yes I am in Colorado)

[Bill Coleman]

The newest trend sweeping the rental market (from my perspective) in Colorado is that many tenants want the right to grow pot in the unit. I can see downsides and upsides.

Downs: messy, elevated risk of break-ins and illegal activities, bad for neighborhood, possible need for electical/HVAC upgrades (paid by tenant)

Ups: tenant will stay for a while and probably be on best behavior, higher security deposit, won't have trouble making rent payment, wont easily be able to move

Has anyone had any experience renting to LEGITIMATE small scale legal growers (not boys who think they know what they are doing)? By small scale, I mean fewer than say 100 plants. 

Has anyone rented to growers and if so, what kinds of clauses did you put in the lease to protect yourself, if any? Did you have any issues with damage to the unit?

Help is appreciated as I have now had 3 prospective tenants asking for this right and I am on the fence about renting to them.