diff --git a/src/charts/datafeed.js b/src/charts/datafeed.js
index e6f6961..944d747 100644
--- a/src/charts/datafeed.js
+++ b/src/charts/datafeed.js
@@ -168,7 +168,7 @@ async function getAllSymbols() {
 	return _symbols
 }
 
-export function lookupSymbol(key) {
+export function lookupSymbol(key) { // lookup by fullname
 	return _symbols[key]
 }
 
@@ -204,6 +204,14 @@ export function maybeInvertBar (pool, bar) {
 	return bar
 }
 
+function checkBar(bar, msg) {
+	if (bar.high<bar.open||bar.high<bar.low||bar.high<bar.close ||
+		bar.low>bar.open||bar.low>bar.high||bar.low>bar.close) {
+			// throw error("poolCallback: bar.high/low inconsistent.")
+			console.log(msg, "bar.high/low inconsistent:", bar)
+		}
+}
+
 export const DataFeed = {
 	onReady: (callback) => {
 		console.log('[onReady]: Method call');
@@ -286,7 +294,7 @@ export const DataFeed = {
 				});
 			}
 			console.log(`[getBars]: returned ${bars.length} bar(s), and metadata ${metadata}`);
-			console.log(bars);
+			console.log('[getBars]: bars=', bars);
 			onHistoryCallback(bars, metadata);
 		} catch (error) {
 			console.log('[getBars]: Get error', error);
@@ -344,19 +352,9 @@ export const DataFeed = {
 				low:   ohlc[3] ?? close, // low
 				close: close,
 			}
-			// if (poolIsInverted(pool)) {
-			// 	bar.open = 1/bar.open
-			// 	let high = bar.high
-			// 	bar.high = 1/bar.low
-			// 	bar.low = 1/high
-			// 	bar.close = 1/bar.close
-			// }
+			checkBar(bar, "poolCallback, before inversion:")
 			bar = maybeInvertBar(pool, bar)
-			if (bar.high<bar.open||bar.high<bar.low||bar.high<bar.close ||
-				bar.low>bar.open||bar.low>bar.high||bar.low>bar.close) {
-					// throw error("poolCallback: bar.high/low inconsistent.")
-					console.log("poolCallback: bar.high/low inconsistent.")
-				}
+			checkBar(bar, "poolCallback, after inversion:")
 			console.log('DataFeed.poolCallback', date.toGMTString(), ohlcs, bar)
 			// No last bar then initialize bar
 			if ( DataFeed.poolCallbackState.lastBar===null) {