Loco were the best priced when I looked and have a great reputation here. The turnaround was just over a week from when booked in (about 10 days without the forks- I may have just been unlucky and been the last in a line for the week though, missed last post to ship back before the weekend, etc, etc).
Lately have started using TF Tuned and been very happy. Competitive pricing, you book the fork in for a specific day and get it straight back. The 3 days total time without the fork and great service have won me over. Extremely friendly and helpful- even machined me a bush because the size I needed was hard to find… for free 😀
Wouldn’t touch Mojo with a barge pole personally. They may do good work but their general poor attitude when asking for advice on the phone and also when dealing with warranty issues was more than enough to put me off. Again, this may be an isolated experience so take it with a pinch of salt.