if you have access to wood chips to use in the kettle, liquid smoke is not necessary. Your meat will already be properly smoked using the chips, so to make the sauce/marinade with smoke would be unnecessary.
warning - liquid smoke is the equivalent of using goat urine here.. or using lighter fluid to start
Be gentle guys - he's new.. and it was a gift to him !!
Lonestar 24" Vertical offset w/ Insulated Firebox & Performer Platinum
Former owner: Jambo Backyard, Klose BYC, Med. Spicewine, Pitts & Spitts, XL & (2) Med. BGE's, 22" WSM & (2) 18" WSM's, 18" & 22" Weber Kettles