Been a while since I spammed the thread with ejector exhaust pics, so here's another one.
According to Sharp & Bowyer's "Mosquito", the Mossies of 2nd TAF wound up their major daylight operations on 26 May 1944 (having started on 3 October 1943), they'd flown 155 daylight operations, totalling around 1,600 sorties, with a "Failed to Return" rate of a shade over 2%.
Bear in mind that Night-Fighter squadrons had been sending radar-less Mosquitos over the Bay of Biscay from December '42 onwards, and over occupied Europe from February '43. (The first daylight "Intruder" I've come across was by a 23 Squadron aircraft on 8 December '42). These all pre-dated the FB.VI, so were flown on F.IIs.
So, this time, it's a Coastal Command aircraft. Coastal Command (apart from the recce squadrons) received FB.VIs starting in February 1944, beginning with 248 Squadron. Try as I might, I can't find a picture of anything other than the 6-lber Mk.XVIII "Tsetses" from 248 Sqn from this period.
So, this particular Mossie is HR118 of 235 Squadron, on 18 July 1944. The aircraft itself was flown by F/L Noel Russell, who would on 11 January of 1945 claim two 109s shot down in a daylight battle at low level over Norwegian waters.

Note the *cough* ejector stubs for the daylight operation. *cough*
Don't have access to the 235 Sqn Operations Record Book, however here's one from the same period from 235's sister Squadron, 248. Note the times stated - more of those *cough* daylight ops again.
*cough*

Karnak - still owe you an answer, just want to compare a couple of data points, but I'm tending to a shade over 350 flat out for the ejector craft at nil feet.