Regretted selling my .177 Mk1 HW77k, tuned by John Alcock, (designer of the Olympic trigger for Air Arms), that I personally re-barrelled with an Anschutz 335 .177 barrel from Worcestershire Black Powder Supplies in Bewdley. Then bought a Left handed Tyrolean walnut stock from Venom at Gun Barrel Ind. Estate, still have the receipt somewhere for it, to sit in.

Well I sold it in 1988/9.....to buy a Mick Dawes Special No09 - PCP in a Left handed Cherry stock.

2 years later I sold the MDS.........to put towards a Bespoke Extended action Mk1 ISP Airstream with GC2 match barrel in .177.

Still got it 30 years later - no issues - still stunningly accurate.

So I suppose those are the 2 I wish I still had, but they were a means to an end, so... such is life.