No worries Shaun , the quality of Asian optics have improved dramatically as said here , and these days it has to be 80/19 % good optics vrs average optics with the last 1% being lemons , but if you buy from a shop here you will get a replacement easily so its not like the 'Bad old Dark ages " of 10 -15 years ago when it was 50/30 at best , with 20% lemons and no internet .
Yes 'Custard ' thickened up some what ! .
Keep looking up Brother
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Brian.